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Finding the Fourth Proportional to 88.19, 122.26 and 83.33

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Solution

The fourth proportional to 88.19, 122.26 and 83.33 is: 115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.19 : 122.26 = 83.33 : x
  2. Step 2: Convert to fraction form
    88.19/122.26 = 83.33/x
  3. Step 3: Cross multiply
    88.19x = 122.26 × 83.33
  4. Step 4: Simplify right side
    88.19x = 10,187.93
  5. Step 5: Solve for x
    x = 10,187.93/88.19
  6. Step 6: Final answer
    x = 115.52

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.