Finding the Fourth Proportional to 129,468.28, 194,277.94 and 54,583.88
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Solution
The fourth proportional to 129,468.28, 194,277.94 and 54,583.88 is: 81,907.66
Step by Step Solution
- Step 1: Write the proportion equation
129,468.28 : 194,277.94 = 54,583.88 : x - Step 2: Convert to fraction form
129,468.28/194,277.94 = 54,583.88/x - Step 3: Cross multiply
129,468.28x = 194,277.94 × 54,583.88 - Step 4: Simplify right side
129,468.28x = 10,604,443,763.61 - Step 5: Solve for x
x = 10,604,443,763.61/129,468.28 - Step 6: Final answer
x = 81,907.66
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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.