Home / 187,013.38-258,077.10-102,130.42

Finding the Fourth Proportional to 187,013.38, 258,077.10 and 102,130.42

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Solution

The fourth proportional to 187,013.38, 258,077.10 and 102,130.42 is: 140,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,013.38 : 258,077.10 = 102,130.42 : x
  2. Step 2: Convert to fraction form
    187,013.38/258,077.10 = 102,130.42/x
  3. Step 3: Cross multiply
    187,013.38x = 258,077.10 × 102,130.42
  4. Step 4: Simplify right side
    187,013.38x = 26,357,522,615.38
  5. Step 5: Solve for x
    x = 26,357,522,615.38/187,013.38
  6. Step 6: Final answer
    x = 140,939.23

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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.