What should be the ration of inbound link between Home page and Internal pages?

[Perfect007]

What should be the ration of inbound link between Home page and Internal pages?  And also wanted to clear my doubt, suppose My website is related to Technology niche with different technologies like PHP, Java etc. Is this better idea to submit internal PHP page link in PHP related directories? Although I know that in the most of the directories have very large number of categories.

[firstconversion]

There is no ratio. Put the links that your users need to navigate your site