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Finding the Fourth Proportional to 181.05, 271.23 and 89.72

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Solution

The fourth proportional to 181.05, 271.23 and 89.72 is: 134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.05 : 271.23 = 89.72 : x
  2. Step 2: Convert to fraction form
    181.05/271.23 = 89.72/x
  3. Step 3: Cross multiply
    181.05x = 271.23 × 89.72
  4. Step 4: Simplify right side
    181.05x = 24,334.76
  5. Step 5: Solve for x
    x = 24,334.76/181.05
  6. Step 6: Final answer
    x = 134.41

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