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Finding the Fourth Proportional to 112.51, 169.01 and 95.43

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Solution

The fourth proportional to 112.51, 169.01 and 95.43 is: 143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.51 : 169.01 = 95.43 : x
  2. Step 2: Convert to fraction form
    112.51/169.01 = 95.43/x
  3. Step 3: Cross multiply
    112.51x = 169.01 × 95.43
  4. Step 4: Simplify right side
    112.51x = 16,128.62
  5. Step 5: Solve for x
    x = 16,128.62/112.51
  6. Step 6: Final answer
    x = 143.35

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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.