Finding the Fourth Proportional to 121,397.60, 167,529.39 and 67,685.96
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Solution
The fourth proportional to 121,397.60, 167,529.39 and 67,685.96 is: 93,407.02
Step by Step Solution
- Step 1: Write the proportion equation
121,397.60 : 167,529.39 = 67,685.96 : x - Step 2: Convert to fraction form
121,397.60/167,529.39 = 67,685.96/x - Step 3: Cross multiply
121,397.60x = 167,529.39 × 67,685.96 - Step 4: Simplify right side
121,397.60x = 11,339,387,590.36 - Step 5: Solve for x
x = 11,339,387,590.36/121,397.60 - Step 6: Final answer
x = 93,407.02
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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.