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Finding the Fourth Proportional to 191.76, 287.36 and 95.38

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Solution

The fourth proportional to 191.76, 287.36 and 95.38 is: 142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.76 : 287.36 = 95.38 : x
  2. Step 2: Convert to fraction form
    191.76/287.36 = 95.38/x
  3. Step 3: Cross multiply
    191.76x = 287.36 × 95.38
  4. Step 4: Simplify right side
    191.76x = 27,408.40
  5. Step 5: Solve for x
    x = 27,408.40/191.76
  6. Step 6: Final answer
    x = 142.93

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