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Finding the Fourth Proportional to 111,251.75, 166,859.16 and 40,160.75

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Solution

The fourth proportional to 111,251.75, 166,859.16 and 40,160.75 is: 60,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,251.75 : 166,859.16 = 40,160.75 : x
  2. Step 2: Convert to fraction form
    111,251.75/166,859.16 = 40,160.75/x
  3. Step 3: Cross multiply
    111,251.75x = 166,859.16 × 40,160.75
  4. Step 4: Simplify right side
    111,251.75x = 6,701,188,025.07
  5. Step 5: Solve for x
    x = 6,701,188,025.07/111,251.75
  6. Step 6: Final answer
    x = 60,234.45

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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.