Finding the Fourth Proportional to 189,076.14, 283,614.18 and 129,731.88
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Solution
The fourth proportional to 189,076.14, 283,614.18 and 129,731.88 is: 194,597.80
Step by Step Solution
- Step 1: Write the proportion equation
189,076.14 : 283,614.18 = 129,731.88 : x - Step 2: Convert to fraction form
189,076.14/283,614.18 = 129,731.88/x - Step 3: Cross multiply
189,076.14x = 283,614.18 × 129,731.88 - Step 4: Simplify right side
189,076.14x = 36,793,800,766.06 - Step 5: Solve for x
x = 36,793,800,766.06/189,076.14 - Step 6: Final answer
x = 194,597.80
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1.5x scale
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.