Finding the Fourth Proportional to 131,861.26, 197,791.86 and 87,574.48
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Solution
The fourth proportional to 131,861.26, 197,791.86 and 87,574.48 is: 131,361.70
Step by Step Solution
- Step 1: Write the proportion equation
131,861.26 : 197,791.86 = 87,574.48 : x - Step 2: Convert to fraction form
131,861.26/197,791.86 = 87,574.48/x - Step 3: Cross multiply
131,861.26x = 197,791.86 × 87,574.48 - Step 4: Simplify right side
131,861.26x = 17,321,519,287.73 - Step 5: Solve for x
x = 17,321,519,287.73/131,861.26 - Step 6: Final answer
x = 131,361.70
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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.