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Finding the Fourth Proportional to 140.81, 210.80 and 94.84

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Solution

The fourth proportional to 140.81, 210.80 and 94.84 is: 141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.81 : 210.80 = 94.84 : x
  2. Step 2: Convert to fraction form
    140.81/210.80 = 94.84/x
  3. Step 3: Cross multiply
    140.81x = 210.80 × 94.84
  4. Step 4: Simplify right side
    140.81x = 19,991.98
  5. Step 5: Solve for x
    x = 19,991.98/140.81
  6. Step 6: Final answer
    x = 141.98

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