Home / 263,139.20-394,514.40-113,256.80

Finding the Fourth Proportional to 263,139.20, 394,514.40 and 113,256.80

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Solution

The fourth proportional to 263,139.20, 394,514.40 and 113,256.80 is: 169,801.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,139.20 : 394,514.40 = 113,256.80 : x
  2. Step 2: Convert to fraction form
    263,139.20/394,514.40 = 113,256.80/x
  3. Step 3: Cross multiply
    263,139.20x = 394,514.40 × 113,256.80
  4. Step 4: Simplify right side
    263,139.20x = 44,681,438,497.92
  5. Step 5: Solve for x
    x = 44,681,438,497.92/263,139.20
  6. Step 6: Final answer
    x = 169,801.53

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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.