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Finding the Fourth Proportional to 113.31, 169.83 and 59.18

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Solution

The fourth proportional to 113.31, 169.83 and 59.18 is: 88.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.31 : 169.83 = 59.18 : x
  2. Step 2: Convert to fraction form
    113.31/169.83 = 59.18/x
  3. Step 3: Cross multiply
    113.31x = 169.83 × 59.18
  4. Step 4: Simplify right side
    113.31x = 10,049.69
  5. Step 5: Solve for x
    x = 10,049.69/113.31
  6. Step 6: Final answer
    x = 88.69

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