Finding the Fourth Proportional to 123,295.59, 170,149.01 and 66,708.09
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Solution
The fourth proportional to 123,295.59, 170,149.01 and 66,708.09 is: 92,057.75
Step by Step Solution
- Step 1: Write the proportion equation
123,295.59 : 170,149.01 = 66,708.09 : x - Step 2: Convert to fraction form
123,295.59/170,149.01 = 66,708.09/x - Step 3: Cross multiply
123,295.59x = 170,149.01 × 66,708.09 - Step 4: Simplify right side
123,295.59x = 11,350,315,138.95 - Step 5: Solve for x
x = 11,350,315,138.95/123,295.59 - Step 6: Final answer
x = 92,057.75
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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.