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Finding the Fourth Proportional to 101.84, 153.31 and 88.61

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Solution

The fourth proportional to 101.84, 153.31 and 88.61 is: 133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.84 : 153.31 = 88.61 : x
  2. Step 2: Convert to fraction form
    101.84/153.31 = 88.61/x
  3. Step 3: Cross multiply
    101.84x = 153.31 × 88.61
  4. Step 4: Simplify right side
    101.84x = 13,584.80
  5. Step 5: Solve for x
    x = 13,584.80/101.84
  6. Step 6: Final answer
    x = 133.39

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