Finding the Fourth Proportional to 129,909.44, 194,842.20 and 36,393.68
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Solution
The fourth proportional to 129,909.44, 194,842.20 and 36,393.68 is: 54,584.37
Step by Step Solution
- Step 1: Write the proportion equation
129,909.44 : 194,842.20 = 36,393.68 : x - Step 2: Convert to fraction form
129,909.44/194,842.20 = 36,393.68/x - Step 3: Cross multiply
129,909.44x = 194,842.20 × 36,393.68 - Step 4: Simplify right side
129,909.44x = 7,091,024,677.30 - Step 5: Solve for x
x = 7,091,024,677.30/129,909.44 - Step 6: Final answer
x = 54,584.37
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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.