Home / 133,017.10-199,266.45-80,269.90

Finding the Fourth Proportional to 133,017.10, 199,266.45 and 80,269.90

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Solution

The fourth proportional to 133,017.10, 199,266.45 and 80,269.90 is: 120,248.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,017.10 : 199,266.45 = 80,269.90 : x
  2. Step 2: Convert to fraction form
    133,017.10/199,266.45 = 80,269.90/x
  3. Step 3: Cross multiply
    133,017.10x = 199,266.45 × 80,269.90
  4. Step 4: Simplify right side
    133,017.10x = 15,995,098,014.86
  5. Step 5: Solve for x
    x = 15,995,098,014.86/133,017.10
  6. Step 6: Final answer
    x = 120,248.43

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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.