Finding the Fourth Proportional to 131,243.26, 181,115.70 and 71,627.26
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Solution
The fourth proportional to 131,243.26, 181,115.70 and 71,627.26 is: 98,845.62
Step by Step Solution
- Step 1: Write the proportion equation
131,243.26 : 181,115.70 = 71,627.26 : x - Step 2: Convert to fraction form
131,243.26/181,115.70 = 71,627.26/x - Step 3: Cross multiply
131,243.26x = 181,115.70 × 71,627.26 - Step 4: Simplify right side
131,243.26x = 12,972,821,333.98 - Step 5: Solve for x
x = 12,972,821,333.98/131,243.26 - Step 6: Final answer
x = 98,845.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.