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Finding the Fourth Proportional to 136,138.80, 204,208.20 and 130,015.20

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Solution

The fourth proportional to 136,138.80, 204,208.20 and 130,015.20 is: 195,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,138.80 : 204,208.20 = 130,015.20 : x
  2. Step 2: Convert to fraction form
    136,138.80/204,208.20 = 130,015.20/x
  3. Step 3: Cross multiply
    136,138.80x = 204,208.20 × 130,015.20
  4. Step 4: Simplify right side
    136,138.80x = 26,550,169,964.64
  5. Step 5: Solve for x
    x = 26,550,169,964.64/136,138.80
  6. Step 6: Final answer
    x = 195,022.80

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