Home / 187,286.48-258,446.28-106,732.88

Finding the Fourth Proportional to 187,286.48, 258,446.28 and 106,732.88

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Solution

The fourth proportional to 187,286.48, 258,446.28 and 106,732.88 is: 147,286.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,286.48 : 258,446.28 = 106,732.88 : x
  2. Step 2: Convert to fraction form
    187,286.48/258,446.28 = 106,732.88/x
  3. Step 3: Cross multiply
    187,286.48x = 258,446.28 × 106,732.88
  4. Step 4: Simplify right side
    187,286.48x = 27,584,715,789.69
  5. Step 5: Solve for x
    x = 27,584,715,789.69/187,286.48
  6. Step 6: Final answer
    x = 147,286.21

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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.