Finding the Fourth Proportional to 156,168.24, 215,515.80 and 88,207.08
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Solution
The fourth proportional to 156,168.24, 215,515.80 and 88,207.08 is: 121,727.82
Step by Step Solution
- Step 1: Write the proportion equation
156,168.24 : 215,515.80 = 88,207.08 : x - Step 2: Convert to fraction form
156,168.24/215,515.80 = 88,207.08/x - Step 3: Cross multiply
156,168.24x = 215,515.80 × 88,207.08 - Step 4: Simplify right side
156,168.24x = 19,010,019,411.86 - Step 5: Solve for x
x = 19,010,019,411.86/156,168.24 - Step 6: Final answer
x = 121,727.82
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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.