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Finding the Fourth Proportional to 161.57, 222.91 and 96.08

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Solution

The fourth proportional to 161.57, 222.91 and 96.08 is: 132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.57 : 222.91 = 96.08 : x
  2. Step 2: Convert to fraction form
    161.57/222.91 = 96.08/x
  3. Step 3: Cross multiply
    161.57x = 222.91 × 96.08
  4. Step 4: Simplify right side
    161.57x = 21,415.84
  5. Step 5: Solve for x
    x = 21,415.84/161.57
  6. Step 6: Final answer
    x = 132.55

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Why These Related Problems?

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