Finding the Fourth Proportional to 137,729.40, 206,642.70 and 132,869.40
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Solution
The fourth proportional to 137,729.40, 206,642.70 and 132,869.40 is: 199,350.99
Step by Step Solution
- Step 1: Write the proportion equation
137,729.40 : 206,642.70 = 132,869.40 : x - Step 2: Convert to fraction form
137,729.40/206,642.70 = 132,869.40/x - Step 3: Cross multiply
137,729.40x = 206,642.70 × 132,869.40 - Step 4: Simplify right side
137,729.40x = 27,456,491,563.38 - Step 5: Solve for x
x = 27,456,491,563.38/137,729.40 - Step 6: Final answer
x = 199,350.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.