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Finding the Fourth Proportional to 148.76, 205.28 and 90.52

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Solution

The fourth proportional to 148.76, 205.28 and 90.52 is: 124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.76 : 205.28 = 90.52 : x
  2. Step 2: Convert to fraction form
    148.76/205.28 = 90.52/x
  3. Step 3: Cross multiply
    148.76x = 205.28 × 90.52
  4. Step 4: Simplify right side
    148.76x = 18,581.95
  5. Step 5: Solve for x
    x = 18,581.95/148.76
  6. Step 6: Final answer
    x = 124.91

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