Finding the Fourth Proportional to 129,814.90, 194,754.75 and 36,319.84
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Solution
The fourth proportional to 129,814.90, 194,754.75 and 36,319.84 is: 54,488.82
Step by Step Solution
- Step 1: Write the proportion equation
129,814.90 : 194,754.75 = 36,319.84 : x - Step 2: Convert to fraction form
129,814.90/194,754.75 = 36,319.84/x - Step 3: Cross multiply
129,814.90x = 194,754.75 × 36,319.84 - Step 4: Simplify right side
129,814.90x = 7,073,461,359.24 - Step 5: Solve for x
x = 7,073,461,359.24/129,814.90 - Step 6: Final answer
x = 54,488.82
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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.