Finding the Fourth Proportional to 125,107.80, 172,651.26 and 68,519.17
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Solution
The fourth proportional to 125,107.80, 172,651.26 and 68,519.17 is: 94,557.82
Step by Step Solution
- Step 1: Write the proportion equation
125,107.80 : 172,651.26 = 68,519.17 : x - Step 2: Convert to fraction form
125,107.80/172,651.26 = 68,519.17/x - Step 3: Cross multiply
125,107.80x = 172,651.26 × 68,519.17 - Step 4: Simplify right side
125,107.80x = 11,829,921,034.65 - Step 5: Solve for x
x = 11,829,921,034.65/125,107.80 - Step 6: Final answer
x = 94,557.82
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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.