Finding the Fourth Proportional to 129,525.28, 194,163.26 and 66,375.26
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Solution
The fourth proportional to 129,525.28, 194,163.26 and 66,375.26 is: 99,499.01
Step by Step Solution
- Step 1: Write the proportion equation
129,525.28 : 194,163.26 = 66,375.26 : x - Step 2: Convert to fraction form
129,525.28/194,163.26 = 66,375.26/x - Step 3: Cross multiply
129,525.28x = 194,163.26 × 66,375.26 - Step 4: Simplify right side
129,525.28x = 12,887,636,864.95 - Step 5: Solve for x
x = 12,887,636,864.95/129,525.28 - Step 6: Final answer
x = 99,499.01
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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.