Home / 119,839.60-179,797.80-80,441.20

Finding the Fourth Proportional to 119,839.60, 179,797.80 and 80,441.20

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Solution

The fourth proportional to 119,839.60, 179,797.80 and 80,441.20 is: 120,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,839.60 : 179,797.80 = 80,441.20 : x
  2. Step 2: Convert to fraction form
    119,839.60/179,797.80 = 80,441.20/x
  3. Step 3: Cross multiply
    119,839.60x = 179,797.80 × 80,441.20
  4. Step 4: Simplify right side
    119,839.60x = 14,463,150,789.36
  5. Step 5: Solve for x
    x = 14,463,150,789.36/119,839.60
  6. Step 6: Final answer
    x = 120,687.58

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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.