Finding the Fourth Proportional to 129,274.26, 194,092.97 and 66,139.65
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Solution
The fourth proportional to 129,274.26, 194,092.97 and 66,139.65 is: 99,302.37
Step by Step Solution
- Step 1: Write the proportion equation
129,274.26 : 194,092.97 = 66,139.65 : x - Step 2: Convert to fraction form
129,274.26/194,092.97 = 66,139.65/x - Step 3: Cross multiply
129,274.26x = 194,092.97 × 66,139.65 - Step 4: Simplify right side
129,274.26x = 12,837,240,772.56 - Step 5: Solve for x
x = 12,837,240,772.56/129,274.26 - Step 6: Final answer
x = 99,302.37
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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.