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Finding the Fourth Proportional to 122,976.60, 184,464.90 and 107,424.60

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Solution

The fourth proportional to 122,976.60, 184,464.90 and 107,424.60 is: 161,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,976.60 : 184,464.90 = 107,424.60 : x
  2. Step 2: Convert to fraction form
    122,976.60/184,464.90 = 107,424.60/x
  3. Step 3: Cross multiply
    122,976.60x = 184,464.90 × 107,424.60
  4. Step 4: Simplify right side
    122,976.60x = 19,816,068,096.54
  5. Step 5: Solve for x
    x = 19,816,068,096.54/122,976.60
  6. Step 6: Final answer
    x = 161,136.90

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