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Finding the Fourth Proportional to 88.29, 132.97 and 73.98

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Solution

The fourth proportional to 88.29, 132.97 and 73.98 is: 111.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.29 : 132.97 = 73.98 : x
  2. Step 2: Convert to fraction form
    88.29/132.97 = 73.98/x
  3. Step 3: Cross multiply
    88.29x = 132.97 × 73.98
  4. Step 4: Simplify right side
    88.29x = 9,837.12
  5. Step 5: Solve for x
    x = 9,837.12/88.29
  6. Step 6: Final answer
    x = 111.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.