Home / 136,202.20-187,961.58-75,778.48

Finding the Fourth Proportional to 136,202.20, 187,961.58 and 75,778.48

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Solution

The fourth proportional to 136,202.20, 187,961.58 and 75,778.48 is: 104,575.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,202.20 : 187,961.58 = 75,778.48 : x
  2. Step 2: Convert to fraction form
    136,202.20/187,961.58 = 75,778.48/x
  3. Step 3: Cross multiply
    136,202.20x = 187,961.58 × 75,778.48
  4. Step 4: Simplify right side
    136,202.20x = 14,243,442,830.80
  5. Step 5: Solve for x
    x = 14,243,442,830.80/136,202.20
  6. Step 6: Final answer
    x = 104,575.72

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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.