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Finding the Fourth Proportional to 154.08, 230.64 and 111.36

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Solution

The fourth proportional to 154.08, 230.64 and 111.36 is: 166.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.08 : 230.64 = 111.36 : x
  2. Step 2: Convert to fraction form
    154.08/230.64 = 111.36/x
  3. Step 3: Cross multiply
    154.08x = 230.64 × 111.36
  4. Step 4: Simplify right side
    154.08x = 25,684.07
  5. Step 5: Solve for x
    x = 25,684.07/154.08
  6. Step 6: Final answer
    x = 166.69

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