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Finding the Fourth Proportional to 133,321.44, 199,882.56 and 80,718.24

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Solution

The fourth proportional to 133,321.44, 199,882.56 and 80,718.24 is: 121,017.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,321.44 : 199,882.56 = 80,718.24 : x
  2. Step 2: Convert to fraction form
    133,321.44/199,882.56 = 80,718.24/x
  3. Step 3: Cross multiply
    133,321.44x = 199,882.56 × 80,718.24
  4. Step 4: Simplify right side
    133,321.44x = 16,134,168,449.89
  5. Step 5: Solve for x
    x = 16,134,168,449.89/133,321.44
  6. Step 6: Final answer
    x = 121,017.06

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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.