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Finding the Fourth Proportional to 111,505.40, 167,258.10 and 74,115.80

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Solution

The fourth proportional to 111,505.40, 167,258.10 and 74,115.80 is: 111,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,505.40 : 167,258.10 = 74,115.80 : x
  2. Step 2: Convert to fraction form
    111,505.40/167,258.10 = 74,115.80/x
  3. Step 3: Cross multiply
    111,505.40x = 167,258.10 × 74,115.80
  4. Step 4: Simplify right side
    111,505.40x = 12,396,467,887.98
  5. Step 5: Solve for x
    x = 12,396,467,887.98/111,505.40
  6. Step 6: Final answer
    x = 111,173.70

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