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Finding the Fourth Proportional to 115.16, 172.53 and 94.82

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Solution

The fourth proportional to 115.16, 172.53 and 94.82 is: 142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115.16 : 172.53 = 94.82 : x
  2. Step 2: Convert to fraction form
    115.16/172.53 = 94.82/x
  3. Step 3: Cross multiply
    115.16x = 172.53 × 94.82
  4. Step 4: Simplify right side
    115.16x = 16,359.29
  5. Step 5: Solve for x
    x = 16,359.29/115.16
  6. Step 6: Final answer
    x = 142.06

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