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Finding the Fourth Proportional to 112.84, 154.79 and 110.44

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Solution

The fourth proportional to 112.84, 154.79 and 110.44 is: 151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.84 : 154.79 = 110.44 : x
  2. Step 2: Convert to fraction form
    112.84/154.79 = 110.44/x
  3. Step 3: Cross multiply
    112.84x = 154.79 × 110.44
  4. Step 4: Simplify right side
    112.84x = 17,095.01
  5. Step 5: Solve for x
    x = 17,095.01/112.84
  6. Step 6: Final answer
    x = 151.50

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.