Home / 133,084.20-199,626.30-69,879.90

Finding the Fourth Proportional to 133,084.20, 199,626.30 and 69,879.90

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Solution

The fourth proportional to 133,084.20, 199,626.30 and 69,879.90 is: 104,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,084.20 : 199,626.30 = 69,879.90 : x
  2. Step 2: Convert to fraction form
    133,084.20/199,626.30 = 69,879.90/x
  3. Step 3: Cross multiply
    133,084.20x = 199,626.30 × 69,879.90
  4. Step 4: Simplify right side
    133,084.20x = 13,949,865,881.37
  5. Step 5: Solve for x
    x = 13,949,865,881.37/133,084.20
  6. Step 6: Final answer
    x = 104,819.85

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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.