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Finding the Fourth Proportional to 88.87, 123.44 and 88.19

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Solution

The fourth proportional to 88.87, 123.44 and 88.19 is: 122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.87 : 123.44 = 88.19 : x
  2. Step 2: Convert to fraction form
    88.87/123.44 = 88.19/x
  3. Step 3: Cross multiply
    88.87x = 123.44 × 88.19
  4. Step 4: Simplify right side
    88.87x = 10,886.17
  5. Step 5: Solve for x
    x = 10,886.17/88.87
  6. Step 6: Final answer
    x = 122.50

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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.