Home / 143,422.30-198,003.85-109,161.73

Finding the Fourth Proportional to 143,422.30, 198,003.85 and 109,161.73

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Solution

The fourth proportional to 143,422.30, 198,003.85 and 109,161.73 is: 150,704.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,422.30 : 198,003.85 = 109,161.73 : x
  2. Step 2: Convert to fraction form
    143,422.30/198,003.85 = 109,161.73/x
  3. Step 3: Cross multiply
    143,422.30x = 198,003.85 × 109,161.73
  4. Step 4: Simplify right side
    143,422.30x = 21,614,442,044.75
  5. Step 5: Solve for x
    x = 21,614,442,044.75/143,422.30
  6. Step 6: Final answer
    x = 150,704.89

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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.