Finding the Fourth Proportional to 123,289.92, 170,138.84 and 66,700.08
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Solution
The fourth proportional to 123,289.92, 170,138.84 and 66,700.08 is: 92,045.43
Step by Step Solution
- Step 1: Write the proportion equation
123,289.92 : 170,138.84 = 66,700.08 : x - Step 2: Convert to fraction form
123,289.92/170,138.84 = 66,700.08/x - Step 3: Cross multiply
123,289.92x = 170,138.84 × 66,700.08 - Step 4: Simplify right side
123,289.92x = 11,348,274,239.11 - Step 5: Solve for x
x = 11,348,274,239.11/123,289.92 - Step 6: Final answer
x = 92,045.43
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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.