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Finding the Fourth Proportional to 169.36, 233.72 and 95.70

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Solution

The fourth proportional to 169.36, 233.72 and 95.70 is: 132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.36 : 233.72 = 95.70 : x
  2. Step 2: Convert to fraction form
    169.36/233.72 = 95.70/x
  3. Step 3: Cross multiply
    169.36x = 233.72 × 95.70
  4. Step 4: Simplify right side
    169.36x = 22,366.53
  5. Step 5: Solve for x
    x = 22,366.53/169.36
  6. Step 6: Final answer
    x = 132.06

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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.