Home / 138,044.32-207,026.46-53,785.70

Finding the Fourth Proportional to 138,044.32, 207,026.46 and 53,785.70

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Solution

The fourth proportional to 138,044.32, 207,026.46 and 53,785.70 is: 80,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,044.32 : 207,026.46 = 53,785.70 : x
  2. Step 2: Convert to fraction form
    138,044.32/207,026.46 = 53,785.70/x
  3. Step 3: Cross multiply
    138,044.32x = 207,026.46 × 53,785.70
  4. Step 4: Simplify right side
    138,044.32x = 11,135,062,810.84
  5. Step 5: Solve for x
    x = 11,135,062,810.84/138,044.32
  6. Step 6: Final answer
    x = 80,662.96

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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.