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Finding the Fourth Proportional to 99.03, 148.43 and 38.12

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Solution

The fourth proportional to 99.03, 148.43 and 38.12 is: 57.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.03 : 148.43 = 38.12 : x
  2. Step 2: Convert to fraction form
    99.03/148.43 = 38.12/x
  3. Step 3: Cross multiply
    99.03x = 148.43 × 38.12
  4. Step 4: Simplify right side
    99.03x = 5,658.62
  5. Step 5: Solve for x
    x = 5,658.62/99.03
  6. Step 6: Final answer
    x = 57.14

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