Home / 187,538.28-258,796.38-106,991.88

Finding the Fourth Proportional to 187,538.28, 258,796.38 and 106,991.88

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Solution

The fourth proportional to 187,538.28, 258,796.38 and 106,991.88 is: 147,645.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,538.28 : 258,796.38 = 106,991.88 : x
  2. Step 2: Convert to fraction form
    187,538.28/258,796.38 = 106,991.88/x
  3. Step 3: Cross multiply
    187,538.28x = 258,796.38 × 106,991.88
  4. Step 4: Simplify right side
    187,538.28x = 27,689,111,233.39
  5. Step 5: Solve for x
    x = 27,689,111,233.39/187,538.28
  6. Step 6: Final answer
    x = 147,645.12

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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.