Finding the Fourth Proportional to 129,708.08, 194,496.50 and 39,723.96
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Solution
The fourth proportional to 129,708.08, 194,496.50 and 39,723.96 is: 59,565.85
Step by Step Solution
- Step 1: Write the proportion equation
129,708.08 : 194,496.50 = 39,723.96 : x - Step 2: Convert to fraction form
129,708.08/194,496.50 = 39,723.96/x - Step 3: Cross multiply
129,708.08x = 194,496.50 × 39,723.96 - Step 4: Simplify right side
129,708.08x = 7,726,171,285.45 - Step 5: Solve for x
x = 7,726,171,285.45/129,708.08 - Step 6: Final answer
x = 59,565.85
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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.