Home / 111,229.30-166,811.55-40,143.70

Finding the Fourth Proportional to 111,229.30, 166,811.55 and 40,143.70

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Solution

The fourth proportional to 111,229.30, 166,811.55 and 40,143.70 is: 60,203.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,229.30 : 166,811.55 = 40,143.70 : x
  2. Step 2: Convert to fraction form
    111,229.30/166,811.55 = 40,143.70/x
  3. Step 3: Cross multiply
    111,229.30x = 166,811.55 × 40,143.70
  4. Step 4: Simplify right side
    111,229.30x = 6,696,432,819.74
  5. Step 5: Solve for x
    x = 6,696,432,819.74/111,229.30
  6. Step 6: Final answer
    x = 60,203.86

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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.