Home / 132,561.20-198,744.60-53,634.80

Finding the Fourth Proportional to 132,561.20, 198,744.60 and 53,634.80

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Solution

The fourth proportional to 132,561.20, 198,744.60 and 53,634.80 is: 80,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,561.20 : 198,744.60 = 53,634.80 : x
  2. Step 2: Convert to fraction form
    132,561.20/198,744.60 = 53,634.80/x
  3. Step 3: Cross multiply
    132,561.20x = 198,744.60 × 53,634.80
  4. Step 4: Simplify right side
    132,561.20x = 10,659,626,872.08
  5. Step 5: Solve for x
    x = 10,659,626,872.08/132,561.20
  6. Step 6: Final answer
    x = 80,412.87

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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.