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Finding the Fourth Proportional to 111,480.60, 166,961.70 and 76,229.40

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Solution

The fourth proportional to 111,480.60, 166,961.70 and 76,229.40 is: 114,166.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,480.60 : 166,961.70 = 76,229.40 : x
  2. Step 2: Convert to fraction form
    111,480.60/166,961.70 = 76,229.40/x
  3. Step 3: Cross multiply
    111,480.60x = 166,961.70 × 76,229.40
  4. Step 4: Simplify right side
    111,480.60x = 12,727,390,213.98
  5. Step 5: Solve for x
    x = 12,727,390,213.98/111,480.60
  6. Step 6: Final answer
    x = 114,166.86

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1.5x scale

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.