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Finding the Fourth Proportional to 151.56, 227.12 and 79.40

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Solution

The fourth proportional to 151.56, 227.12 and 79.40 is: 118.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.56 : 227.12 = 79.40 : x
  2. Step 2: Convert to fraction form
    151.56/227.12 = 79.40/x
  3. Step 3: Cross multiply
    151.56x = 227.12 × 79.40
  4. Step 4: Simplify right side
    151.56x = 18,033.33
  5. Step 5: Solve for x
    x = 18,033.33/151.56
  6. Step 6: Final answer
    x = 118.98

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