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Finding the Fourth Proportional to 97.22, 145.30 and 89.53

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Solution

The fourth proportional to 97.22, 145.30 and 89.53 is: 133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.22 : 145.30 = 89.53 : x
  2. Step 2: Convert to fraction form
    97.22/145.30 = 89.53/x
  3. Step 3: Cross multiply
    97.22x = 145.30 × 89.53
  4. Step 4: Simplify right side
    97.22x = 13,008.71
  5. Step 5: Solve for x
    x = 13,008.71/97.22
  6. Step 6: Final answer
    x = 133.81

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