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Finding the Fourth Proportional to 88.47, 122.04 and 70.97

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Solution

The fourth proportional to 88.47, 122.04 and 70.97 is: 97.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.47 : 122.04 = 70.97 : x
  2. Step 2: Convert to fraction form
    88.47/122.04 = 70.97/x
  3. Step 3: Cross multiply
    88.47x = 122.04 × 70.97
  4. Step 4: Simplify right side
    88.47x = 8,660.57
  5. Step 5: Solve for x
    x = 8,660.57/88.47
  6. Step 6: Final answer
    x = 97.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.