Finding the Fourth Proportional to 131,771.26, 181,844.09 and 71,341.90
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Solution
The fourth proportional to 131,771.26, 181,844.09 and 71,341.90 is: 98,451.68
Step by Step Solution
- Step 1: Write the proportion equation
131,771.26 : 181,844.09 = 71,341.90 : x - Step 2: Convert to fraction form
131,771.26/181,844.09 = 71,341.90/x - Step 3: Cross multiply
131,771.26x = 181,844.09 × 71,341.90 - Step 4: Simplify right side
131,771.26x = 12,973,102,073.05 - Step 5: Solve for x
x = 12,973,102,073.05/131,771.26 - Step 6: Final answer
x = 98,451.68
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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.