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Finding the Fourth Proportional to 157.23, 235.85 and 92.91

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Solution

The fourth proportional to 157.23, 235.85 and 92.91 is: 139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.23 : 235.85 = 92.91 : x
  2. Step 2: Convert to fraction form
    157.23/235.85 = 92.91/x
  3. Step 3: Cross multiply
    157.23x = 235.85 × 92.91
  4. Step 4: Simplify right side
    157.23x = 21,912.36
  5. Step 5: Solve for x
    x = 21,912.36/157.23
  6. Step 6: Final answer
    x = 139.37

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