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Finding the Fourth Proportional to 122.06, 183.06 and 108.47

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Solution

The fourth proportional to 122.06, 183.06 and 108.47 is: 162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.06 : 183.06 = 108.47 : x
  2. Step 2: Convert to fraction form
    122.06/183.06 = 108.47/x
  3. Step 3: Cross multiply
    122.06x = 183.06 × 108.47
  4. Step 4: Simplify right side
    122.06x = 19,855.60
  5. Step 5: Solve for x
    x = 19,855.60/122.06
  6. Step 6: Final answer
    x = 162.68

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