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Finding the Fourth Proportional to 134.25, 184.68 and 109.63

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Solution

The fourth proportional to 134.25, 184.68 and 109.63 is: 150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.25 : 184.68 = 109.63 : x
  2. Step 2: Convert to fraction form
    134.25/184.68 = 109.63/x
  3. Step 3: Cross multiply
    134.25x = 184.68 × 109.63
  4. Step 4: Simplify right side
    134.25x = 20,246.47
  5. Step 5: Solve for x
    x = 20,246.47/134.25
  6. Step 6: Final answer
    x = 150.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.