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Finding the Fourth Proportional to 131.76, 197.34 and 97.58

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Solution

The fourth proportional to 131.76, 197.34 and 97.58 is: 146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.76 : 197.34 = 97.58 : x
  2. Step 2: Convert to fraction form
    131.76/197.34 = 97.58/x
  3. Step 3: Cross multiply
    131.76x = 197.34 × 97.58
  4. Step 4: Simplify right side
    131.76x = 19,256.44
  5. Step 5: Solve for x
    x = 19,256.44/131.76
  6. Step 6: Final answer
    x = 146.15

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