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Finding the Fourth Proportional to 111,562.80, 167,117.40 and 69,313.20

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Solution

The fourth proportional to 111,562.80, 167,117.40 and 69,313.20 is: 103,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,562.80 : 167,117.40 = 69,313.20 : x
  2. Step 2: Convert to fraction form
    111,562.80/167,117.40 = 69,313.20/x
  3. Step 3: Cross multiply
    111,562.80x = 167,117.40 × 69,313.20
  4. Step 4: Simplify right side
    111,562.80x = 11,583,441,769.68
  5. Step 5: Solve for x
    x = 11,583,441,769.68/111,562.80
  6. Step 6: Final answer
    x = 103,828.89

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