Finding the Fourth Proportional to 129,165.12, 193,742.37 and 44,944.56
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Solution
The fourth proportional to 129,165.12, 193,742.37 and 44,944.56 is: 67,414.99
Step by Step Solution
- Step 1: Write the proportion equation
129,165.12 : 193,742.37 = 44,944.56 : x - Step 2: Convert to fraction form
129,165.12/193,742.37 = 44,944.56/x - Step 3: Cross multiply
129,165.12x = 193,742.37 × 44,944.56 - Step 4: Simplify right side
129,165.12x = 8,707,665,573.01 - Step 5: Solve for x
x = 8,707,665,573.01/129,165.12 - Step 6: Final answer
x = 67,414.99
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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.