Finding the Fourth Proportional to 136,122.64, 187,849.39 and 75,691.98
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Solution
The fourth proportional to 136,122.64, 187,849.39 and 75,691.98 is: 104,455.02
Step by Step Solution
- Step 1: Write the proportion equation
136,122.64 : 187,849.39 = 75,691.98 : x - Step 2: Convert to fraction form
136,122.64/187,849.39 = 75,691.98/x - Step 3: Cross multiply
136,122.64x = 187,849.39 × 75,691.98 - Step 4: Simplify right side
136,122.64x = 14,218,693,022.19 - Step 5: Solve for x
x = 14,218,693,022.19/136,122.64 - Step 6: Final answer
x = 104,455.02
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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.