Finding the Fourth Proportional to 125,757.97, 173,470.11 and 77,368.16
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Solution
The fourth proportional to 125,757.97, 173,470.11 and 77,368.16 is: 106,721.38
Step by Step Solution
- Step 1: Write the proportion equation
125,757.97 : 173,470.11 = 77,368.16 : x - Step 2: Convert to fraction form
125,757.97/173,470.11 = 77,368.16/x - Step 3: Cross multiply
125,757.97x = 173,470.11 × 77,368.16 - Step 4: Simplify right side
125,757.97x = 13,421,063,369.24 - Step 5: Solve for x
x = 13,421,063,369.24/125,757.97 - Step 6: Final answer
x = 106,721.38
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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.