Finding the Fourth Proportional to 156,171.08, 215,516.18 and 84,551.12
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Solution
The fourth proportional to 156,171.08, 215,516.18 and 84,551.12 is: 116,680.59
Step by Step Solution
- Step 1: Write the proportion equation
156,171.08 : 215,516.18 = 84,551.12 : x - Step 2: Convert to fraction form
156,171.08/215,516.18 = 84,551.12/x - Step 3: Cross multiply
156,171.08x = 215,516.18 × 84,551.12 - Step 4: Simplify right side
156,171.08x = 18,222,134,397.12 - Step 5: Solve for x
x = 18,222,134,397.12/156,171.08 - Step 6: Final answer
x = 116,680.59
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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.