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Finding the Fourth Proportional to 120.73, 181.02 and 39.56

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Solution

The fourth proportional to 120.73, 181.02 and 39.56 is: 59.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120.73 : 181.02 = 39.56 : x
  2. Step 2: Convert to fraction form
    120.73/181.02 = 39.56/x
  3. Step 3: Cross multiply
    120.73x = 181.02 × 39.56
  4. Step 4: Simplify right side
    120.73x = 7,161.15
  5. Step 5: Solve for x
    x = 7,161.15/120.73
  6. Step 6: Final answer
    x = 59.32

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