Finding the Fourth Proportional to 113,107.20, 169,660.80 and 110,191.20
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Solution
The fourth proportional to 113,107.20, 169,660.80 and 110,191.20 is: 165,286.80
Step by Step Solution
- Step 1: Write the proportion equation
113,107.20 : 169,660.80 = 110,191.20 : x - Step 2: Convert to fraction form
113,107.20/169,660.80 = 110,191.20/x - Step 3: Cross multiply
113,107.20x = 169,660.80 × 110,191.20 - Step 4: Simplify right side
113,107.20x = 18,695,127,144.96 - Step 5: Solve for x
x = 18,695,127,144.96/113,107.20 - Step 6: Final answer
x = 165,286.80
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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.