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Finding the Fourth Proportional to 165.61, 248.08 and 120.05

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Solution

The fourth proportional to 165.61, 248.08 and 120.05 is: 179.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.61 : 248.08 = 120.05 : x
  2. Step 2: Convert to fraction form
    165.61/248.08 = 120.05/x
  3. Step 3: Cross multiply
    165.61x = 248.08 × 120.05
  4. Step 4: Simplify right side
    165.61x = 29,782.00
  5. Step 5: Solve for x
    x = 29,782.00/165.61
  6. Step 6: Final answer
    x = 179.83

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