Finding the Fourth Proportional to 123,738.62, 170,759.28 and 67,149.99
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Solution
The fourth proportional to 123,738.62, 170,759.28 and 67,149.99 is: 92,666.98
Step by Step Solution
- Step 1: Write the proportion equation
123,738.62 : 170,759.28 = 67,149.99 : x - Step 2: Convert to fraction form
123,738.62/170,759.28 = 67,149.99/x - Step 3: Cross multiply
123,738.62x = 170,759.28 × 67,149.99 - Step 4: Simplify right side
123,738.62x = 11,466,484,196.22 - Step 5: Solve for x
x = 11,466,484,196.22/123,738.62 - Step 6: Final answer
x = 92,666.98
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1.5x scale
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.