Verb (used with object) : to apportion expenses among the three men.    From Dictionary.com. 

A rent payable in produce and services is apportionable.    From Wordnik.com.  [WordPress.com News] Reference

Treasure was within their reach, apportionable, when obtained, as prize-money.    From Wordnik.com.  ["Where Angels Fear to Tread" and Other Stories of the Sea] Reference

The umpire held that of this amount, one-half should equitably be held apportionable to the missions of.    From Wordnik.com.  [The Catholic Encyclopedia, Volume 12: Philip II-Reuss] Reference

But along with the shares there were other rights and that the value apportionable to those rights was required to be taxed in India.    From Wordnik.com.  [Moneycontrol Top Headlines] Reference

As it regards apportionment in its application to contracts generally, the rule of the common law is, that an entire contract is not apportionable, unless specially stipulated by the parties, and courts of equity have very gener­ally adopted the maxim, aquitas sequitur legem.    From Wordnik.com.  [WordPress.com News] Reference

Any person who shall have paid more than the proportionate amount of the tax apportionable to him under section five on any property or interest passing to him, or in his possession, shall be entitled to a just and equitable contribution from those who shall not have paid the full amount of the tax apportionable to them respectively.    From Wordnik.com.  [Acts and resolves passed by the General Court] Reference

Any person who shall have paid more than the proportionate amount of the tax apportionable to him under said section five on any property or interest passing to him, or in his pos - session, shall be entitled to a just and equitable contribution from those who shall not have paid the full amount of the tax apportionable to them respectively.    From Wordnik.com.  [Acts and resolves passed by the General Court] Reference

Honor, that the wet goods apportionable to our absent friends be set aside for them. ".    From Wordnik.com.  [Double Trouble Or, Every Hero His Own Villain] Reference

To this commission the prelates of Upper California, in 1869, presented their claims against Mexico for such part of twenty-one years 'interest on the Pious Fund (accrued between 1848 and 1869) payable under the terms of the Santa Ana decree of 1842, as was properly apportionable to the missions of Upper California (Lower California having remained.    From Wordnik.com.  [The Catholic Encyclopedia, Volume 12: Philip II-Reuss] Reference