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.
[[-135, 69, -200, 4], [32, -57, 26, 39, -125, -154, -166], [-148, 42, -121], [10, 67, -191, -3], [-1, 51, -121]]