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Finding the Fourth Proportional to 121,512.78, 167,688.09 and 67,800.06

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Solution

The fourth proportional to 121,512.78, 167,688.09 and 67,800.06 is: 93,564.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,512.78 : 167,688.09 = 67,800.06 : x
  2. Step 2: Convert to fraction form
    121,512.78/167,688.09 = 67,800.06/x
  3. Step 3: Cross multiply
    121,512.78x = 167,688.09 × 67,800.06
  4. Step 4: Simplify right side
    121,512.78x = 11,369,262,563.29
  5. Step 5: Solve for x
    x = 11,369,262,563.29/121,512.78
  6. Step 6: Final answer
    x = 93,564.34

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