Finding the Fourth Proportional to 129,230.80, 193,713.96 and 44,921.78
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Solution
The fourth proportional to 129,230.80, 193,713.96 and 44,921.78 is: 67,336.70
Step by Step Solution
- Step 1: Write the proportion equation
129,230.80 : 193,713.96 = 44,921.78 : x - Step 2: Convert to fraction form
129,230.80/193,713.96 = 44,921.78/x - Step 3: Cross multiply
129,230.80x = 193,713.96 × 44,921.78 - Step 4: Simplify right side
129,230.80x = 8,701,975,894.05 - Step 5: Solve for x
x = 8,701,975,894.05/129,230.80 - Step 6: Final answer
x = 67,336.70
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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.