Home / 133,238.14-199,758.36-80,635.12

Finding the Fourth Proportional to 133,238.14, 199,758.36 and 80,635.12

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Solution

The fourth proportional to 133,238.14, 199,758.36 and 80,635.12 is: 120,892.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,238.14 : 199,758.36 = 80,635.12 : x
  2. Step 2: Convert to fraction form
    133,238.14/199,758.36 = 80,635.12/x
  3. Step 3: Cross multiply
    133,238.14x = 199,758.36 × 80,635.12
  4. Step 4: Simplify right side
    133,238.14x = 16,107,539,329.60
  5. Step 5: Solve for x
    x = 16,107,539,329.60/133,238.14
  6. Step 6: Final answer
    x = 120,892.86

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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.