Home / 139,546.20-209,319.30-132,329.10

Finding the Fourth Proportional to 139,546.20, 209,319.30 and 132,329.10

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Solution

The fourth proportional to 139,546.20, 209,319.30 and 132,329.10 is: 198,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,546.20 : 209,319.30 = 132,329.10 : x
  2. Step 2: Convert to fraction form
    139,546.20/209,319.30 = 132,329.10/x
  3. Step 3: Cross multiply
    139,546.20x = 209,319.30 × 132,329.10
  4. Step 4: Simplify right side
    139,546.20x = 27,699,034,581.63
  5. Step 5: Solve for x
    x = 27,699,034,581.63/139,546.20
  6. Step 6: Final answer
    x = 198,493.65

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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.