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Finding the Fourth Proportional to 187,891.20, 259,290.42 and 101,850.28

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Solution

The fourth proportional to 187,891.20, 259,290.42 and 101,850.28 is: 140,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,891.20 : 259,290.42 = 101,850.28 : x
  2. Step 2: Convert to fraction form
    187,891.20/259,290.42 = 101,850.28/x
  3. Step 3: Cross multiply
    187,891.20x = 259,290.42 × 101,850.28
  4. Step 4: Simplify right side
    187,891.20x = 26,408,801,878.32
  5. Step 5: Solve for x
    x = 26,408,801,878.32/187,891.20
  6. Step 6: Final answer
    x = 140,553.69

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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.