Finding the Fourth Proportional to 129,460.28, 194,265.94 and 54,575.88
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Solution
The fourth proportional to 129,460.28, 194,265.94 and 54,575.88 is: 81,895.66
Step by Step Solution
- Step 1: Write the proportion equation
129,460.28 : 194,265.94 = 54,575.88 : x - Step 2: Convert to fraction form
129,460.28/194,265.94 = 54,575.88/x - Step 3: Cross multiply
129,460.28x = 194,265.94 × 54,575.88 - Step 4: Simplify right side
129,460.28x = 10,602,234,629.53 - Step 5: Solve for x
x = 10,602,234,629.53/129,460.28 - Step 6: Final answer
x = 81,895.66
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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.