Home / 187,139.97-258,253.82-102,257.03

Finding the Fourth Proportional to 187,139.97, 258,253.82 and 102,257.03

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Solution

The fourth proportional to 187,139.97, 258,253.82 and 102,257.03 is: 141,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,139.97 : 258,253.82 = 102,257.03 : x
  2. Step 2: Convert to fraction form
    187,139.97/258,253.82 = 102,257.03/x
  3. Step 3: Cross multiply
    187,139.97x = 258,253.82 × 102,257.03
  4. Step 4: Simplify right side
    187,139.97x = 26,408,269,137.17
  5. Step 5: Solve for x
    x = 26,408,269,137.17/187,139.97
  6. Step 6: Final answer
    x = 141,115.07

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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.