Home / 133,240.14-199,761.39-80,637.12

Finding the Fourth Proportional to 133,240.14, 199,761.39 and 80,637.12

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Solution

The fourth proportional to 133,240.14, 199,761.39 and 80,637.12 is: 120,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,240.14 : 199,761.39 = 80,637.12 : x
  2. Step 2: Convert to fraction form
    133,240.14/199,761.39 = 80,637.12/x
  3. Step 3: Cross multiply
    133,240.14x = 199,761.39 × 80,637.12
  4. Step 4: Simplify right side
    133,240.14x = 16,108,183,176.80
  5. Step 5: Solve for x
    x = 16,108,183,176.80/133,240.14
  6. Step 6: Final answer
    x = 120,895.87

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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.