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Finding the Fourth Proportional to 169.55, 234.02 and 107.35

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Solution

The fourth proportional to 169.55, 234.02 and 107.35 is: 148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.55 : 234.02 = 107.35 : x
  2. Step 2: Convert to fraction form
    169.55/234.02 = 107.35/x
  3. Step 3: Cross multiply
    169.55x = 234.02 × 107.35
  4. Step 4: Simplify right side
    169.55x = 25,120.93
  5. Step 5: Solve for x
    x = 25,120.93/169.55
  6. Step 6: Final answer
    x = 148.17

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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.