Be aware that not all consulates/embassies follow the 125% of 3X/5X poverty guideline. My family of 3 showed 250K US cash and it wasn't enough. The CO asked for a joint sponsor. Since we didn't want to use a joint sponsor, we showed half a million dollars and that was ultimately accepted. They are really looking for steady, reliable petitioner US income. Hopefully your interview is at a consulate that accepts 100K.