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Finding the Fourth Proportional to 95.91, 143.74 and 73

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Solution

The fourth proportional to 95.91, 143.74 and 73 is: 109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.91 : 143.74 = 73 : x
  2. Step 2: Convert to fraction form
    95.91/143.74 = 73/x
  3. Step 3: Cross multiply
    95.91x = 143.74 × 73
  4. Step 4: Simplify right side
    95.91x = 10,493.02
  5. Step 5: Solve for x
    x = 10,493.02/95.91
  6. Step 6: Final answer
    x = 109.40

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