Home / 133,057.28-199,578.36-80,452.64

Finding the Fourth Proportional to 133,057.28, 199,578.36 and 80,452.64

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Solution

The fourth proportional to 133,057.28, 199,578.36 and 80,452.64 is: 120,674.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,057.28 : 199,578.36 = 80,452.64 : x
  2. Step 2: Convert to fraction form
    133,057.28/199,578.36 = 80,452.64/x
  3. Step 3: Cross multiply
    133,057.28x = 199,578.36 × 80,452.64
  4. Step 4: Simplify right side
    133,057.28x = 16,056,605,948.87
  5. Step 5: Solve for x
    x = 16,056,605,948.87/133,057.28
  6. Step 6: Final answer
    x = 120,674.39

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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.