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Finding the Fourth Proportional to 95.07, 142.29 and 72.12

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Solution

The fourth proportional to 95.07, 142.29 and 72.12 is: 107.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.07 : 142.29 = 72.12 : x
  2. Step 2: Convert to fraction form
    95.07/142.29 = 72.12/x
  3. Step 3: Cross multiply
    95.07x = 142.29 × 72.12
  4. Step 4: Simplify right side
    95.07x = 10,261.14
  5. Step 5: Solve for x
    x = 10,261.14/95.07
  6. Step 6: Final answer
    x = 107.94

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