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Finding the Fourth Proportional to 133,323.44, 199,885.56 and 80,720.24

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Solution

The fourth proportional to 133,323.44, 199,885.56 and 80,720.24 is: 121,020.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,323.44 : 199,885.56 = 80,720.24 : x
  2. Step 2: Convert to fraction form
    133,323.44/199,885.56 = 80,720.24/x
  3. Step 3: Cross multiply
    133,323.44x = 199,885.56 × 80,720.24
  4. Step 4: Simplify right side
    133,323.44x = 16,134,810,375.73
  5. Step 5: Solve for x
    x = 16,134,810,375.73/133,323.44
  6. Step 6: Final answer
    x = 121,020.06

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1.5x scale

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.