Home / 268,529.42-402,767.97-81,542.54

Finding the Fourth Proportional to 268,529.42, 402,767.97 and 81,542.54

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Solution

The fourth proportional to 268,529.42, 402,767.97 and 81,542.54 is: 122,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,529.42 : 402,767.97 = 81,542.54 : x
  2. Step 2: Convert to fraction form
    268,529.42/402,767.97 = 81,542.54/x
  3. Step 3: Cross multiply
    268,529.42x = 402,767.97 × 81,542.54
  4. Step 4: Simplify right side
    268,529.42x = 32,842,723,304.44
  5. Step 5: Solve for x
    x = 32,842,723,304.44/268,529.42
  6. Step 6: Final answer
    x = 122,305.87

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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.