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Finding the Fourth Proportional to 158.20, 237.24 and 71.56

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Solution

The fourth proportional to 158.20, 237.24 and 71.56 is: 107.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.20 : 237.24 = 71.56 : x
  2. Step 2: Convert to fraction form
    158.20/237.24 = 71.56/x
  3. Step 3: Cross multiply
    158.20x = 237.24 × 71.56
  4. Step 4: Simplify right side
    158.20x = 16,976.89
  5. Step 5: Solve for x
    x = 16,976.89/158.20
  6. Step 6: Final answer
    x = 107.31

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