Home / 187,016.80-258,079.08-102,134.20

Finding the Fourth Proportional to 187,016.80, 258,079.08 and 102,134.20

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Solution

The fourth proportional to 187,016.80, 258,079.08 and 102,134.20 is: 140,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,016.80 : 258,079.08 = 102,134.20 : x
  2. Step 2: Convert to fraction form
    187,016.80/258,079.08 = 102,134.20/x
  3. Step 3: Cross multiply
    187,016.80x = 258,079.08 × 102,134.20
  4. Step 4: Simplify right side
    187,016.80x = 26,358,700,372.54
  5. Step 5: Solve for x
    x = 26,358,700,372.54/187,016.80
  6. Step 6: Final answer
    x = 140,942.95

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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.