Finding the Fourth Proportional to 129,105.18, 193,688.91 and 44,853.12
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Solution
The fourth proportional to 129,105.18, 193,688.91 and 44,853.12 is: 67,290.50
Step by Step Solution
- Step 1: Write the proportion equation
129,105.18 : 193,688.91 = 44,853.12 : x - Step 2: Convert to fraction form
129,105.18/193,688.91 = 44,853.12/x - Step 3: Cross multiply
129,105.18x = 193,688.91 × 44,853.12 - Step 4: Simplify right side
129,105.18x = 8,687,551,922.90 - Step 5: Solve for x
x = 8,687,551,922.90/129,105.18 - Step 6: Final answer
x = 67,290.50
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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.