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Finding the Fourth Proportional to 191.16, 263.88 and 125.64

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Solution

The fourth proportional to 191.16, 263.88 and 125.64 is: 173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.16 : 263.88 = 125.64 : x
  2. Step 2: Convert to fraction form
    191.16/263.88 = 125.64/x
  3. Step 3: Cross multiply
    191.16x = 263.88 × 125.64
  4. Step 4: Simplify right side
    191.16x = 33,153.88
  5. Step 5: Solve for x
    x = 33,153.88/191.16
  6. Step 6: Final answer
    x = 173.44

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