Finding the Fourth Proportional to 129,561.60, 194,572.80 and 94,540.80
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Solution
The fourth proportional to 129,561.60, 194,572.80 and 94,540.80 is: 141,979.32
Step by Step Solution
- Step 1: Write the proportion equation
129,561.60 : 194,572.80 = 94,540.80 : x - Step 2: Convert to fraction form
129,561.60/194,572.80 = 94,540.80/x - Step 3: Cross multiply
129,561.60x = 194,572.80 × 94,540.80 - Step 4: Simplify right side
129,561.60x = 18,395,068,170.24 - Step 5: Solve for x
x = 18,395,068,170.24/129,561.60 - Step 6: Final answer
x = 141,979.32
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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.