Home / 187,140.38-258,260.10-102,262.91

Finding the Fourth Proportional to 187,140.38, 258,260.10 and 102,262.91

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Solution

The fourth proportional to 187,140.38, 258,260.10 and 102,262.91 is: 141,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,140.38 : 258,260.10 = 102,262.91 : x
  2. Step 2: Convert to fraction form
    187,140.38/258,260.10 = 102,262.91/x
  3. Step 3: Cross multiply
    187,140.38x = 258,260.10 × 102,262.91
  4. Step 4: Simplify right side
    187,140.38x = 26,410,427,688.10
  5. Step 5: Solve for x
    x = 26,410,427,688.10/187,140.38
  6. Step 6: Final answer
    x = 141,126.29

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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.