Home / 160.20-221.11-123.26

Finding the Fourth Proportional to 160.20, 221.11 and 123.26

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Solution

The fourth proportional to 160.20, 221.11 and 123.26 is: 170.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.20 : 221.11 = 123.26 : x
  2. Step 2: Convert to fraction form
    160.20/221.11 = 123.26/x
  3. Step 3: Cross multiply
    160.20x = 221.11 × 123.26
  4. Step 4: Simplify right side
    160.20x = 27,252.60
  5. Step 5: Solve for x
    x = 27,252.60/160.20
  6. Step 6: Final answer
    x = 170.12

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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.