Home / 209,086.24-288,540.20-113,593.76

Finding the Fourth Proportional to 209,086.24, 288,540.20 and 113,593.76

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Solution

The fourth proportional to 209,086.24, 288,540.20 and 113,593.76 is: 156,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,086.24 : 288,540.20 = 113,593.76 : x
  2. Step 2: Convert to fraction form
    209,086.24/288,540.20 = 113,593.76/x
  3. Step 3: Cross multiply
    209,086.24x = 288,540.20 × 113,593.76
  4. Step 4: Simplify right side
    209,086.24x = 32,776,366,229.15
  5. Step 5: Solve for x
    x = 32,776,366,229.15/209,086.24
  6. Step 6: Final answer
    x = 156,760.03

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1.5x scale

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.