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.
[[-132, -108, -117, -121, -190], [-99, -79], [-139, 74, 5, 88, 83, -6], [100, 86, -75]]