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Finding the Fourth Proportional to 97.50, 134.44 and 79.05

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Solution

The fourth proportional to 97.50, 134.44 and 79.05 is: 109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.50 : 134.44 = 79.05 : x
  2. Step 2: Convert to fraction form
    97.50/134.44 = 79.05/x
  3. Step 3: Cross multiply
    97.50x = 134.44 × 79.05
  4. Step 4: Simplify right side
    97.50x = 10,627.48
  5. Step 5: Solve for x
    x = 10,627.48/97.50
  6. Step 6: Final answer
    x = 109.00

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