Finding the Fourth Proportional to 187,876.12, 281,786.82 and 54,720.64
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Solution
The fourth proportional to 187,876.12, 281,786.82 and 54,720.64 is: 82,072.99
Step by Step Solution
- Step 1: Write the proportion equation
187,876.12 : 281,786.82 = 54,720.64 : x - Step 2: Convert to fraction form
187,876.12/281,786.82 = 54,720.64/x - Step 3: Cross multiply
187,876.12x = 281,786.82 × 54,720.64 - Step 4: Simplify right side
187,876.12x = 15,419,555,133.96 - Step 5: Solve for x
x = 15,419,555,133.96/187,876.12 - Step 6: Final answer
x = 82,072.99
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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.