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Finding the Fourth Proportional to 111,572.40, 167,261.40 and 67,216.80

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Solution

The fourth proportional to 111,572.40, 167,261.40 and 67,216.80 is: 100,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,572.40 : 167,261.40 = 67,216.80 : x
  2. Step 2: Convert to fraction form
    111,572.40/167,261.40 = 67,216.80/x
  3. Step 3: Cross multiply
    111,572.40x = 167,261.40 × 67,216.80
  4. Step 4: Simplify right side
    111,572.40x = 11,242,776,071.52
  5. Step 5: Solve for x
    x = 11,242,776,071.52/111,572.40
  6. Step 6: Final answer
    x = 100,766.64

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