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Finding the Fourth Proportional to 137,896.20, 206,844.30 and 102,904.20

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Solution

The fourth proportional to 137,896.20, 206,844.30 and 102,904.20 is: 154,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,896.20 : 206,844.30 = 102,904.20 : x
  2. Step 2: Convert to fraction form
    137,896.20/206,844.30 = 102,904.20/x
  3. Step 3: Cross multiply
    137,896.20x = 206,844.30 × 102,904.20
  4. Step 4: Simplify right side
    137,896.20x = 21,285,147,216.06
  5. Step 5: Solve for x
    x = 21,285,147,216.06/137,896.20
  6. Step 6: Final answer
    x = 154,356.30

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