Home / 139,974.20-209,961.30-132,392.60

Finding the Fourth Proportional to 139,974.20, 209,961.30 and 132,392.60

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Solution

The fourth proportional to 139,974.20, 209,961.30 and 132,392.60 is: 198,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,974.20 : 209,961.30 = 132,392.60 : x
  2. Step 2: Convert to fraction form
    139,974.20/209,961.30 = 132,392.60/x
  3. Step 3: Cross multiply
    139,974.20x = 209,961.30 × 132,392.60
  4. Step 4: Simplify right side
    139,974.20x = 27,797,322,406.38
  5. Step 5: Solve for x
    x = 27,797,322,406.38/139,974.20
  6. Step 6: Final answer
    x = 198,588.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.