Finding the Fourth Proportional to 123,426.87, 170,329.19 and 69,711.99
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Solution
The fourth proportional to 123,426.87, 170,329.19 and 69,711.99 is: 96,202.61
Step by Step Solution
- Step 1: Write the proportion equation
123,426.87 : 170,329.19 = 69,711.99 : x - Step 2: Convert to fraction form
123,426.87/170,329.19 = 69,711.99/x - Step 3: Cross multiply
123,426.87x = 170,329.19 × 69,711.99 - Step 4: Simplify right side
123,426.87x = 11,873,986,789.99 - Step 5: Solve for x
x = 11,873,986,789.99/123,426.87 - Step 6: Final answer
x = 96,202.61
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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.