Home / 133,350.20-199,993.30-77,068.60

Finding the Fourth Proportional to 133,350.20, 199,993.30 and 77,068.60

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Solution

The fourth proportional to 133,350.20, 199,993.30 and 77,068.60 is: 115,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,350.20 : 199,993.30 = 77,068.60 : x
  2. Step 2: Convert to fraction form
    133,350.20/199,993.30 = 77,068.60/x
  3. Step 3: Cross multiply
    133,350.20x = 199,993.30 × 77,068.60
  4. Step 4: Simplify right side
    133,350.20x = 15,413,203,640.38
  5. Step 5: Solve for x
    x = 15,413,203,640.38/133,350.20
  6. Step 6: Final answer
    x = 115,584.41

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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.