Home / 187,787.16-259,120.92-107,209.56

Finding the Fourth Proportional to 187,787.16, 259,120.92 and 107,209.56

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Solution

The fourth proportional to 187,787.16, 259,120.92 and 107,209.56 is: 147,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,787.16 : 259,120.92 = 107,209.56 : x
  2. Step 2: Convert to fraction form
    187,787.16/259,120.92 = 107,209.56/x
  3. Step 3: Cross multiply
    187,787.16x = 259,120.92 × 107,209.56
  4. Step 4: Simplify right side
    187,787.16x = 27,780,239,820.00
  5. Step 5: Solve for x
    x = 27,780,239,820.00/187,787.16
  6. Step 6: Final answer
    x = 147,934.71

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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.