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Finding the Fourth Proportional to 88.83, 122.49 and 88.56

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Solution

The fourth proportional to 88.83, 122.49 and 88.56 is: 122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.83 : 122.49 = 88.56 : x
  2. Step 2: Convert to fraction form
    88.83/122.49 = 88.56/x
  3. Step 3: Cross multiply
    88.83x = 122.49 × 88.56
  4. Step 4: Simplify right side
    88.83x = 10,847.71
  5. Step 5: Solve for x
    x = 10,847.71/88.83
  6. Step 6: Final answer
    x = 122.12

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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.