Finding the Fourth Proportional to 127,724.79, 176,265.66 and 71,136.17
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Solution
The fourth proportional to 127,724.79, 176,265.66 and 71,136.17 is: 98,170.95
Step by Step Solution
- Step 1: Write the proportion equation
127,724.79 : 176,265.66 = 71,136.17 : x - Step 2: Convert to fraction form
127,724.79/176,265.66 = 71,136.17/x - Step 3: Cross multiply
127,724.79x = 176,265.66 × 71,136.17 - Step 4: Simplify right side
127,724.79x = 12,538,863,954.92 - Step 5: Solve for x
x = 12,538,863,954.92/127,724.79 - Step 6: Final answer
x = 98,170.95
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1.5x scale
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.