Finding the Fourth Proportional to 120,808.26, 181,276.38 and 87,800.76
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Solution
The fourth proportional to 120,808.26, 181,276.38 and 87,800.76 is: 131,747.65
Step by Step Solution
- Step 1: Write the proportion equation
120,808.26 : 181,276.38 = 87,800.76 : x - Step 2: Convert to fraction form
120,808.26/181,276.38 = 87,800.76/x - Step 3: Cross multiply
120,808.26x = 181,276.38 × 87,800.76 - Step 4: Simplify right side
120,808.26x = 15,916,203,934.05 - Step 5: Solve for x
x = 15,916,203,934.05/120,808.26 - Step 6: Final answer
x = 131,747.65
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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.