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Finding the Fourth Proportional to 134.06, 201.01 and 90.73

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Solution

The fourth proportional to 134.06, 201.01 and 90.73 is: 136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.06 : 201.01 = 90.73 : x
  2. Step 2: Convert to fraction form
    134.06/201.01 = 90.73/x
  3. Step 3: Cross multiply
    134.06x = 201.01 × 90.73
  4. Step 4: Simplify right side
    134.06x = 18,236.18
  5. Step 5: Solve for x
    x = 18,236.18/134.06
  6. Step 6: Final answer
    x = 136.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.