Finding the Fourth Proportional to 100,040.40, 138,687.12 and 94,713.84
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Solution
The fourth proportional to 100,040.40, 138,687.12 and 94,713.84 is: 131,302.85
Step by Step Solution
- Step 1: Write the proportion equation
100,040.40 : 138,687.12 = 94,713.84 : x - Step 2: Convert to fraction form
100,040.40/138,687.12 = 94,713.84/x - Step 3: Cross multiply
100,040.40x = 138,687.12 × 94,713.84 - Step 4: Simplify right side
100,040.40x = 13,135,589,693.74 - Step 5: Solve for x
x = 13,135,589,693.74/100,040.40 - Step 6: Final answer
x = 131,302.85
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.