Finding the Fourth Proportional to 129,437.80, 194,163.10 and 67,229.80
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Solution
The fourth proportional to 129,437.80, 194,163.10 and 67,229.80 is: 100,848.02
Step by Step Solution
- Step 1: Write the proportion equation
129,437.80 : 194,163.10 = 67,229.80 : x - Step 2: Convert to fraction form
129,437.80/194,163.10 = 67,229.80/x - Step 3: Cross multiply
129,437.80x = 194,163.10 × 67,229.80 - Step 4: Simplify right side
129,437.80x = 13,053,546,380.38 - Step 5: Solve for x
x = 13,053,546,380.38/129,437.80 - Step 6: Final answer
x = 100,848.02
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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.