Finding the Fourth Proportional to 127,691.13, 176,211.69 and 70,335.95
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Solution
The fourth proportional to 127,691.13, 176,211.69 and 70,335.95 is: 97,062.46
Step by Step Solution
- Step 1: Write the proportion equation
127,691.13 : 176,211.69 = 70,335.95 : x - Step 2: Convert to fraction form
127,691.13/176,211.69 = 70,335.95/x - Step 3: Cross multiply
127,691.13x = 176,211.69 × 70,335.95 - Step 4: Simplify right side
127,691.13x = 12,394,015,472.44 - Step 5: Solve for x
x = 12,394,015,472.44/127,691.13 - Step 6: Final answer
x = 97,062.46
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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.