Finding the Fourth Proportional to 123,396.76, 170,277.84 and 69,687.08
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Solution
The fourth proportional to 123,396.76, 170,277.84 and 69,687.08 is: 96,162.70
Step by Step Solution
- Step 1: Write the proportion equation
123,396.76 : 170,277.84 = 69,687.08 : x - Step 2: Convert to fraction form
123,396.76/170,277.84 = 69,687.08/x - Step 3: Cross multiply
123,396.76x = 170,277.84 × 69,687.08 - Step 4: Simplify right side
123,396.76x = 11,866,165,458.31 - Step 5: Solve for x
x = 11,866,165,458.31/123,396.76 - Step 6: Final answer
x = 96,162.70
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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.