Finding the Fourth Proportional to 129,913.91, 194,887.27 and 41,135.68
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Solution
The fourth proportional to 129,913.91, 194,887.27 and 41,135.68 is: 61,708.72
Step by Step Solution
- Step 1: Write the proportion equation
129,913.91 : 194,887.27 = 41,135.68 : x - Step 2: Convert to fraction form
129,913.91/194,887.27 = 41,135.68/x - Step 3: Cross multiply
129,913.91x = 194,887.27 × 41,135.68 - Step 4: Simplify right side
129,913.91x = 8,016,820,438.43 - Step 5: Solve for x
x = 8,016,820,438.43/129,913.91 - Step 6: Final answer
x = 61,708.72
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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.