Finding the Fourth Proportional to 129,785.60, 194,764.80 and 59,628.80
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Solution
The fourth proportional to 129,785.60, 194,764.80 and 59,628.80 is: 89,482.90
Step by Step Solution
- Step 1: Write the proportion equation
129,785.60 : 194,764.80 = 59,628.80 : x - Step 2: Convert to fraction form
129,785.60/194,764.80 = 59,628.80/x - Step 3: Cross multiply
129,785.60x = 194,764.80 × 59,628.80 - Step 4: Simplify right side
129,785.60x = 11,613,591,306.24 - Step 5: Solve for x
x = 11,613,591,306.24/129,785.60 - Step 6: Final answer
x = 89,482.90
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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.