Home / 139,890.12-209,773.42-40,027.57

Finding the Fourth Proportional to 139,890.12, 209,773.42 and 40,027.57

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Solution

The fourth proportional to 139,890.12, 209,773.42 and 40,027.57 is: 60,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,890.12 : 209,773.42 = 40,027.57 : x
  2. Step 2: Convert to fraction form
    139,890.12/209,773.42 = 40,027.57/x
  3. Step 3: Cross multiply
    139,890.12x = 209,773.42 × 40,027.57
  4. Step 4: Simplify right side
    139,890.12x = 8,396,720,253.19
  5. Step 5: Solve for x
    x = 8,396,720,253.19/139,890.12
  6. Step 6: Final answer
    x = 60,023.68

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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.