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Finding the Fourth Proportional to 88.04, 132.79 and 84.44

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Solution

The fourth proportional to 88.04, 132.79 and 84.44 is: 127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.04 : 132.79 = 84.44 : x
  2. Step 2: Convert to fraction form
    88.04/132.79 = 84.44/x
  3. Step 3: Cross multiply
    88.04x = 132.79 × 84.44
  4. Step 4: Simplify right side
    88.04x = 11,212.79
  5. Step 5: Solve for x
    x = 11,212.79/88.04
  6. Step 6: Final answer
    x = 127.36

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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.