Home / 181,431.28-250,390.92-100,874.56

Finding the Fourth Proportional to 181,431.28, 250,390.92 and 100,874.56

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Solution

The fourth proportional to 181,431.28, 250,390.92 and 100,874.56 is: 139,215.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,431.28 : 250,390.92 = 100,874.56 : x
  2. Step 2: Convert to fraction form
    181,431.28/250,390.92 = 100,874.56/x
  3. Step 3: Cross multiply
    181,431.28x = 250,390.92 × 100,874.56
  4. Step 4: Simplify right side
    181,431.28x = 25,258,073,883.00
  5. Step 5: Solve for x
    x = 25,258,073,883.00/181,431.28
  6. Step 6: Final answer
    x = 139,215.65

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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.