Finding the Fourth Proportional to 134,882.10, 186,138.84 and 74,452.79
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Solution
The fourth proportional to 134,882.10, 186,138.84 and 74,452.79 is: 102,745.70
Step by Step Solution
- Step 1: Write the proportion equation
134,882.10 : 186,138.84 = 74,452.79 : x - Step 2: Convert to fraction form
134,882.10/186,138.84 = 74,452.79/x - Step 3: Cross multiply
134,882.10x = 186,138.84 × 74,452.79 - Step 4: Simplify right side
134,882.10x = 13,858,555,965.36 - Step 5: Solve for x
x = 13,858,555,965.36/134,882.10 - Step 6: Final answer
x = 102,745.70
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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.