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Finding the Fourth Proportional to 138,653.37, 207,963.99 and 38,821.55

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Solution

The fourth proportional to 138,653.37, 207,963.99 and 38,821.55 is: 58,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,653.37 : 207,963.99 = 38,821.55 : x
  2. Step 2: Convert to fraction form
    138,653.37/207,963.99 = 38,821.55/x
  3. Step 3: Cross multiply
    138,653.37x = 207,963.99 × 38,821.55
  4. Step 4: Simplify right side
    138,653.37x = 8,073,483,396.16
  5. Step 5: Solve for x
    x = 8,073,483,396.16/138,653.37
  6. Step 6: Final answer
    x = 58,227.82

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