Finding the Fourth Proportional to 127,723.79, 176,264.28 and 71,135.17
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Solution
The fourth proportional to 127,723.79, 176,264.28 and 71,135.17 is: 98,169.56
Step by Step Solution
- Step 1: Write the proportion equation
127,723.79 : 176,264.28 = 71,135.17 : x - Step 2: Convert to fraction form
127,723.79/176,264.28 = 71,135.17/x - Step 3: Cross multiply
127,723.79x = 176,264.28 × 71,135.17 - Step 4: Simplify right side
127,723.79x = 12,538,589,082.07 - Step 5: Solve for x
x = 12,538,589,082.07/127,723.79 - Step 6: Final answer
x = 98,169.56
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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.