Finding the Fourth Proportional to 127,691.97, 176,135.09 and 91,825.17
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Solution
The fourth proportional to 127,691.97, 176,135.09 and 91,825.17 is: 126,661.33
Step by Step Solution
- Step 1: Write the proportion equation
127,691.97 : 176,135.09 = 91,825.17 : x - Step 2: Convert to fraction form
127,691.97/176,135.09 = 91,825.17/x - Step 3: Cross multiply
127,691.97x = 176,135.09 × 91,825.17 - Step 4: Simplify right side
127,691.97x = 16,173,634,123.09 - Step 5: Solve for x
x = 16,173,634,123.09/127,691.97 - Step 6: Final answer
x = 126,661.33
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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.