Finding the Fourth Proportional to 129,659.88, 194,472.54 and 36,175.08
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Solution
The fourth proportional to 129,659.88, 194,472.54 and 36,175.08 is: 54,257.80
Step by Step Solution
- Step 1: Write the proportion equation
129,659.88 : 194,472.54 = 36,175.08 : x - Step 2: Convert to fraction form
129,659.88/194,472.54 = 36,175.08/x - Step 3: Cross multiply
129,659.88x = 194,472.54 × 36,175.08 - Step 4: Simplify right side
129,659.88x = 7,035,059,692.30 - Step 5: Solve for x
x = 7,035,059,692.30/129,659.88 - Step 6: Final answer
x = 54,257.80
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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.