Finding the Fourth Proportional to 129,620.92, 194,447.60 and 50,724.96
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Solution
The fourth proportional to 129,620.92, 194,447.60 and 50,724.96 is: 76,093.79
Step by Step Solution
- Step 1: Write the proportion equation
129,620.92 : 194,447.60 = 50,724.96 : x - Step 2: Convert to fraction form
129,620.92/194,447.60 = 50,724.96/x - Step 3: Cross multiply
129,620.92x = 194,447.60 × 50,724.96 - Step 4: Simplify right side
129,620.92x = 9,863,346,732.10 - Step 5: Solve for x
x = 9,863,346,732.10/129,620.92 - Step 6: Final answer
x = 76,093.79
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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.