Home / 187,114.11-258,217.03-102,231.78

Finding the Fourth Proportional to 187,114.11, 258,217.03 and 102,231.78

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Solution

The fourth proportional to 187,114.11, 258,217.03 and 102,231.78 is: 141,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,114.11 : 258,217.03 = 102,231.78 : x
  2. Step 2: Convert to fraction form
    187,114.11/258,217.03 = 102,231.78/x
  3. Step 3: Cross multiply
    187,114.11x = 258,217.03 × 102,231.78
  4. Step 4: Simplify right side
    187,114.11x = 26,397,986,603.21
  5. Step 5: Solve for x
    x = 26,397,986,603.21/187,114.11
  6. Step 6: Final answer
    x = 141,079.62

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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.