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Finding the Fourth Proportional to 171.95, 257.93 and 63.72

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Solution

The fourth proportional to 171.95, 257.93 and 63.72 is: 95.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.95 : 257.93 = 63.72 : x
  2. Step 2: Convert to fraction form
    171.95/257.93 = 63.72/x
  3. Step 3: Cross multiply
    171.95x = 257.93 × 63.72
  4. Step 4: Simplify right side
    171.95x = 16,435.30
  5. Step 5: Solve for x
    x = 16,435.30/171.95
  6. Step 6: Final answer
    x = 95.58

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