Home / 133,576.20-200,275.38-80,147.88

Finding the Fourth Proportional to 133,576.20, 200,275.38 and 80,147.88

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Solution

The fourth proportional to 133,576.20, 200,275.38 and 80,147.88 is: 120,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,576.20 : 200,275.38 = 80,147.88 : x
  2. Step 2: Convert to fraction form
    133,576.20/200,275.38 = 80,147.88/x
  3. Step 3: Cross multiply
    133,576.20x = 200,275.38 × 80,147.88
  4. Step 4: Simplify right side
    133,576.20x = 16,051,647,123.19
  5. Step 5: Solve for x
    x = 16,051,647,123.19/133,576.20
  6. Step 6: Final answer
    x = 120,168.47

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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.