Finding the Fourth Proportional to 121,777.38, 182,370.84 and 84,232.08
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Solution
The fourth proportional to 121,777.38, 182,370.84 and 84,232.08 is: 126,143.91
Step by Step Solution
- Step 1: Write the proportion equation
121,777.38 : 182,370.84 = 84,232.08 : x - Step 2: Convert to fraction form
121,777.38/182,370.84 = 84,232.08/x - Step 3: Cross multiply
121,777.38x = 182,370.84 × 84,232.08 - Step 4: Simplify right side
121,777.38x = 15,361,475,184.55 - Step 5: Solve for x
x = 15,361,475,184.55/121,777.38 - Step 6: Final answer
x = 126,143.91
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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.