In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[51, -107], [68, -146, 19], [-146, -44, 100, -70, -118], [-125, 70, -54, 43]]