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Finding the Fourth Proportional to 112.05, 167.95 and 84.91

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Solution

The fourth proportional to 112.05, 167.95 and 84.91 is: 127.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.05 : 167.95 = 84.91 : x
  2. Step 2: Convert to fraction form
    112.05/167.95 = 84.91/x
  3. Step 3: Cross multiply
    112.05x = 167.95 × 84.91
  4. Step 4: Simplify right side
    112.05x = 14,260.63
  5. Step 5: Solve for x
    x = 14,260.63/112.05
  6. Step 6: Final answer
    x = 127.27

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