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Finding the Fourth Proportional to 111,680.40, 167,520.60 and 64,441.20

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Solution

The fourth proportional to 111,680.40, 167,520.60 and 64,441.20 is: 96,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,680.40 : 167,520.60 = 64,441.20 : x
  2. Step 2: Convert to fraction form
    111,680.40/167,520.60 = 64,441.20/x
  3. Step 3: Cross multiply
    111,680.40x = 167,520.60 × 64,441.20
  4. Step 4: Simplify right side
    111,680.40x = 10,795,228,488.72
  5. Step 5: Solve for x
    x = 10,795,228,488.72/111,680.40
  6. Step 6: Final answer
    x = 96,661.80

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