Proportionally
131Proportionment — Pro*por tion*ment, n. The act or process of dividing out proportionally. [1913 Webster] …
132Prorate — Pro*rate , v. t. [imp. & p. p. {Prorated}; p. pr. & vb. n. {Prorating}.] [From L. pro rata (sc. parte) according to a certain part, in proportion.] To divide or distribute proportionally; to assess pro rata. [U.S.] [1913 Webster] …