Finding the Fourth Proportional to 123,359.61, 170,236.24 and 66,770.99
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Solution
The fourth proportional to 123,359.61, 170,236.24 and 66,770.99 is: 92,143.95
Step by Step Solution
- Step 1: Write the proportion equation
123,359.61 : 170,236.24 = 66,770.99 : x - Step 2: Convert to fraction form
123,359.61/170,236.24 = 66,770.99/x - Step 3: Cross multiply
123,359.61x = 170,236.24 × 66,770.99 - Step 4: Simplify right side
123,359.61x = 11,366,842,278.68 - Step 5: Solve for x
x = 11,366,842,278.68/123,359.61 - Step 6: Final answer
x = 92,143.95
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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.