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Finding the Fourth Proportional to 94.92, 142.04 and 84.94

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Solution

The fourth proportional to 94.92, 142.04 and 84.94 is: 127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.92 : 142.04 = 84.94 : x
  2. Step 2: Convert to fraction form
    94.92/142.04 = 84.94/x
  3. Step 3: Cross multiply
    94.92x = 142.04 × 84.94
  4. Step 4: Simplify right side
    94.92x = 12,064.88
  5. Step 5: Solve for x
    x = 12,064.88/94.92
  6. Step 6: Final answer
    x = 127.11

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