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Finding the Fourth Proportional to 114.48, 172.33 and 88.92

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Solution

The fourth proportional to 114.48, 172.33 and 88.92 is: 133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.48 : 172.33 = 88.92 : x
  2. Step 2: Convert to fraction form
    114.48/172.33 = 88.92/x
  3. Step 3: Cross multiply
    114.48x = 172.33 × 88.92
  4. Step 4: Simplify right side
    114.48x = 15,323.36
  5. Step 5: Solve for x
    x = 15,323.36/114.48
  6. Step 6: Final answer
    x = 133.85

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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.