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Finding the Fourth Proportional to 108.84, 163.53 and 102.36

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Solution

The fourth proportional to 108.84, 163.53 and 102.36 is: 153.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.84 : 163.53 = 102.36 : x
  2. Step 2: Convert to fraction form
    108.84/163.53 = 102.36/x
  3. Step 3: Cross multiply
    108.84x = 163.53 × 102.36
  4. Step 4: Simplify right side
    108.84x = 16,738.93
  5. Step 5: Solve for x
    x = 16,738.93/108.84
  6. Step 6: Final answer
    x = 153.79

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