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Finding the Fourth Proportional to 111,538.80, 167,364.90 and 74,124.90

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Solution

The fourth proportional to 111,538.80, 167,364.90 and 74,124.90 is: 111,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,538.80 : 167,364.90 = 74,124.90 : x
  2. Step 2: Convert to fraction form
    111,538.80/167,364.90 = 74,124.90/x
  3. Step 3: Cross multiply
    111,538.80x = 167,364.90 × 74,124.90
  4. Step 4: Simplify right side
    111,538.80x = 12,405,906,476.01
  5. Step 5: Solve for x
    x = 12,405,906,476.01/111,538.80
  6. Step 6: Final answer
    x = 111,225.03

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