Finding the Fourth Proportional to 129,613.98, 194,414.49 and 50,742.66
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Solution
The fourth proportional to 129,613.98, 194,414.49 and 50,742.66 is: 76,111.45
Step by Step Solution
- Step 1: Write the proportion equation
129,613.98 : 194,414.49 = 50,742.66 : x - Step 2: Convert to fraction form
129,613.98/194,414.49 = 50,742.66/x - Step 3: Cross multiply
129,613.98x = 194,414.49 × 50,742.66 - Step 4: Simplify right side
129,613.98x = 9,865,108,365.14 - Step 5: Solve for x
x = 9,865,108,365.14/129,613.98 - Step 6: Final answer
x = 76,111.45
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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.