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Finding the Fourth Proportional to 111,258.42, 166,897.89 and 36,378.95

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Solution

The fourth proportional to 111,258.42, 166,897.89 and 36,378.95 is: 54,571.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,258.42 : 166,897.89 = 36,378.95 : x
  2. Step 2: Convert to fraction form
    111,258.42/166,897.89 = 36,378.95/x
  3. Step 3: Cross multiply
    111,258.42x = 166,897.89 × 36,378.95
  4. Step 4: Simplify right side
    111,258.42x = 6,071,569,786.79
  5. Step 5: Solve for x
    x = 6,071,569,786.79/111,258.42
  6. Step 6: Final answer
    x = 54,571.78

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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.