Finding the Fourth Proportional to 88,079.14, 121,381.42 and 86,459.70
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Solution
The fourth proportional to 88,079.14, 121,381.42 and 86,459.70 is: 119,149.68
Step by Step Solution
- Step 1: Write the proportion equation
88,079.14 : 121,381.42 = 86,459.70 : x - Step 2: Convert to fraction form
88,079.14/121,381.42 = 86,459.70/x - Step 3: Cross multiply
88,079.14x = 121,381.42 × 86,459.70 - Step 4: Simplify right side
88,079.14x = 10,494,601,246.08 - Step 5: Solve for x
x = 10,494,601,246.08/88,079.14 - Step 6: Final answer
x = 119,149.68
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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.