Home / 165,040.11-227,758.97-100,512.38

Finding the Fourth Proportional to 165,040.11, 227,758.97 and 100,512.38

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Solution

The fourth proportional to 165,040.11, 227,758.97 and 100,512.38 is: 138,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,040.11 : 227,758.97 = 100,512.38 : x
  2. Step 2: Convert to fraction form
    165,040.11/227,758.97 = 100,512.38/x
  3. Step 3: Cross multiply
    165,040.11x = 227,758.97 × 100,512.38
  4. Step 4: Simplify right side
    165,040.11x = 22,892,596,961.73
  5. Step 5: Solve for x
    x = 22,892,596,961.73/165,040.11
  6. Step 6: Final answer
    x = 138,709.29

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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.