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Finding the Fourth Proportional to 189.74, 284.57 and 67.97

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Solution

The fourth proportional to 189.74, 284.57 and 67.97 is: 101.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189.74 : 284.57 = 67.97 : x
  2. Step 2: Convert to fraction form
    189.74/284.57 = 67.97/x
  3. Step 3: Cross multiply
    189.74x = 284.57 × 67.97
  4. Step 4: Simplify right side
    189.74x = 19,342.85
  5. Step 5: Solve for x
    x = 19,342.85/189.74
  6. Step 6: Final answer
    x = 101.94

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