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Finding the Fourth Proportional to 134.68, 201.72 and 107.56

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Solution

The fourth proportional to 134.68, 201.72 and 107.56 is: 161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.68 : 201.72 = 107.56 : x
  2. Step 2: Convert to fraction form
    134.68/201.72 = 107.56/x
  3. Step 3: Cross multiply
    134.68x = 201.72 × 107.56
  4. Step 4: Simplify right side
    134.68x = 21,697.00
  5. Step 5: Solve for x
    x = 21,697.00/134.68
  6. Step 6: Final answer
    x = 161.10

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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.