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Finding the Fourth Proportional to 147.82, 221.80 and 75.73

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Solution

The fourth proportional to 147.82, 221.80 and 75.73 is: 113.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.82 : 221.80 = 75.73 : x
  2. Step 2: Convert to fraction form
    147.82/221.80 = 75.73/x
  3. Step 3: Cross multiply
    147.82x = 221.80 × 75.73
  4. Step 4: Simplify right side
    147.82x = 16,795.98
  5. Step 5: Solve for x
    x = 16,795.98/147.82
  6. Step 6: Final answer
    x = 113.63

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