Finding the Fourth Proportional to 122,140.62, 168,553.68 and 67,696.26
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Solution
The fourth proportional to 122,140.62, 168,553.68 and 67,696.26 is: 93,420.63
Step by Step Solution
- Step 1: Write the proportion equation
122,140.62 : 168,553.68 = 67,696.26 : x - Step 2: Convert to fraction form
122,140.62/168,553.68 = 67,696.26/x - Step 3: Cross multiply
122,140.62x = 168,553.68 × 67,696.26 - Step 4: Simplify right side
122,140.62x = 11,410,453,745.24 - Step 5: Solve for x
x = 11,410,453,745.24/122,140.62 - Step 6: Final answer
x = 93,420.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.