Finding the Fourth Proportional to 106,871.76, 147,459.15 and 63,839.70
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Solution
The fourth proportional to 106,871.76, 147,459.15 and 63,839.70 is: 88,084.52
Step by Step Solution
- Step 1: Write the proportion equation
106,871.76 : 147,459.15 = 63,839.70 : x - Step 2: Convert to fraction form
106,871.76/147,459.15 = 63,839.70/x - Step 3: Cross multiply
106,871.76x = 147,459.15 × 63,839.70 - Step 4: Simplify right side
106,871.76x = 9,413,747,898.26 - Step 5: Solve for x
x = 9,413,747,898.26/106,871.76 - Step 6: Final answer
x = 88,084.52
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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.