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Finding the Fourth Proportional to 156.03, 215.37 and 97.85

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Solution

The fourth proportional to 156.03, 215.37 and 97.85 is: 135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.03 : 215.37 = 97.85 : x
  2. Step 2: Convert to fraction form
    156.03/215.37 = 97.85/x
  3. Step 3: Cross multiply
    156.03x = 215.37 × 97.85
  4. Step 4: Simplify right side
    156.03x = 21,072.88
  5. Step 5: Solve for x
    x = 21,072.88/156.03
  6. Step 6: Final answer
    x = 135.06

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