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Finding the Fourth Proportional to 121,786.23, 168,072.84 and 68,071.44

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Solution

The fourth proportional to 121,786.23, 168,072.84 and 68,071.44 is: 93,942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,786.23 : 168,072.84 = 68,071.44 : x
  2. Step 2: Convert to fraction form
    121,786.23/168,072.84 = 68,071.44/x
  3. Step 3: Cross multiply
    121,786.23x = 168,072.84 × 68,071.44
  4. Step 4: Simplify right side
    121,786.23x = 11,440,960,243.69
  5. Step 5: Solve for x
    x = 11,440,960,243.69/121,786.23
  6. Step 6: Final answer
    x = 93,942.97

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