Home / 135,752.38-187,335.41-75,321.72

Finding the Fourth Proportional to 135,752.38, 187,335.41 and 75,321.72

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Solution

The fourth proportional to 135,752.38, 187,335.41 and 75,321.72 is: 103,942.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,752.38 : 187,335.41 = 75,321.72 : x
  2. Step 2: Convert to fraction form
    135,752.38/187,335.41 = 75,321.72/x
  3. Step 3: Cross multiply
    135,752.38x = 187,335.41 × 75,321.72
  4. Step 4: Simplify right side
    135,752.38x = 14,110,425,298.11
  5. Step 5: Solve for x
    x = 14,110,425,298.11/135,752.38
  6. Step 6: Final answer
    x = 103,942.38

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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.