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Finding the Fourth Proportional to 113.25, 169.91 and 59.12

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Solution

The fourth proportional to 113.25, 169.91 and 59.12 is: 88.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.25 : 169.91 = 59.12 : x
  2. Step 2: Convert to fraction form
    113.25/169.91 = 59.12/x
  3. Step 3: Cross multiply
    113.25x = 169.91 × 59.12
  4. Step 4: Simplify right side
    113.25x = 10,043.93
  5. Step 5: Solve for x
    x = 10,043.93/113.25
  6. Step 6: Final answer
    x = 88.69

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