Finding the Fourth Proportional to 129,872.64, 194,652.20 and 63,212.88
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Solution
The fourth proportional to 129,872.64, 194,652.20 and 63,212.88 is: 94,743.02
Step by Step Solution
- Step 1: Write the proportion equation
129,872.64 : 194,652.20 = 63,212.88 : x - Step 2: Convert to fraction form
129,872.64/194,652.20 = 63,212.88/x - Step 3: Cross multiply
129,872.64x = 194,652.20 × 63,212.88 - Step 4: Simplify right side
129,872.64x = 12,304,526,160.34 - Step 5: Solve for x
x = 12,304,526,160.34/129,872.64 - Step 6: Final answer
x = 94,743.02
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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.