Home / 135,949.03-187,639.67-75,540.44

Finding the Fourth Proportional to 135,949.03, 187,639.67 and 75,540.44

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Solution

The fourth proportional to 135,949.03, 187,639.67 and 75,540.44 is: 104,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,949.03 : 187,639.67 = 75,540.44 : x
  2. Step 2: Convert to fraction form
    135,949.03/187,639.67 = 75,540.44/x
  3. Step 3: Cross multiply
    135,949.03x = 187,639.67 × 75,540.44
  4. Step 4: Simplify right side
    135,949.03x = 14,174,383,233.25
  5. Step 5: Solve for x
    x = 14,174,383,233.25/135,949.03
  6. Step 6: Final answer
    x = 104,262.48

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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.