Finding the Fourth Proportional to 129,943.26, 194,913.72 and 41,194.47
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Solution
The fourth proportional to 129,943.26, 194,913.72 and 41,194.47 is: 61,791.33
Step by Step Solution
- Step 1: Write the proportion equation
129,943.26 : 194,913.72 = 41,194.47 : x - Step 2: Convert to fraction form
129,943.26/194,913.72 = 41,194.47/x - Step 3: Cross multiply
129,943.26x = 194,913.72 × 41,194.47 - Step 4: Simplify right side
129,943.26x = 8,029,367,391.13 - Step 5: Solve for x
x = 8,029,367,391.13/129,943.26 - Step 6: Final answer
x = 61,791.33
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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.