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Finding the Fourth Proportional to 143.97, 216.05 and 62.81

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Solution

The fourth proportional to 143.97, 216.05 and 62.81 is: 94.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.97 : 216.05 = 62.81 : x
  2. Step 2: Convert to fraction form
    143.97/216.05 = 62.81/x
  3. Step 3: Cross multiply
    143.97x = 216.05 × 62.81
  4. Step 4: Simplify right side
    143.97x = 13,568.71
  5. Step 5: Solve for x
    x = 13,568.71/143.97
  6. Step 6: Final answer
    x = 94.25

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