Home / 139,462.12-209,027.13-72,884.44

Finding the Fourth Proportional to 139,462.12, 209,027.13 and 72,884.44

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Solution

The fourth proportional to 139,462.12, 209,027.13 and 72,884.44 is: 109,239.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,462.12 : 209,027.13 = 72,884.44 : x
  2. Step 2: Convert to fraction form
    139,462.12/209,027.13 = 72,884.44/x
  3. Step 3: Cross multiply
    139,462.12x = 209,027.13 × 72,884.44
  4. Step 4: Simplify right side
    139,462.12x = 15,234,825,314.86
  5. Step 5: Solve for x
    x = 15,234,825,314.86/139,462.12
  6. Step 6: Final answer
    x = 109,239.88

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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.