Finding the Fourth Proportional to 123,464.20, 170,378.58 and 66,875.08
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Solution
The fourth proportional to 123,464.20, 170,378.58 and 66,875.08 is: 92,286.52
Step by Step Solution
- Step 1: Write the proportion equation
123,464.20 : 170,378.58 = 66,875.08 : x - Step 2: Convert to fraction form
123,464.20/170,378.58 = 66,875.08/x - Step 3: Cross multiply
123,464.20x = 170,378.58 × 66,875.08 - Step 4: Simplify right side
123,464.20x = 11,394,081,167.79 - Step 5: Solve for x
x = 11,394,081,167.79/123,464.20 - Step 6: Final answer
x = 92,286.52
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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.