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Finding the Fourth Proportional to 138,616.84, 207,950.88 and 43,870.90

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Solution

The fourth proportional to 138,616.84, 207,950.88 and 43,870.90 is: 65,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,616.84 : 207,950.88 = 43,870.90 : x
  2. Step 2: Convert to fraction form
    138,616.84/207,950.88 = 43,870.90/x
  3. Step 3: Cross multiply
    138,616.84x = 207,950.88 × 43,870.90
  4. Step 4: Simplify right side
    138,616.84x = 9,122,992,261.39
  5. Step 5: Solve for x
    x = 9,122,992,261.39/138,616.84
  6. Step 6: Final answer
    x = 65,814.46

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