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Finding the Fourth Proportional to 160.98, 221.82 and 124.03

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Solution

The fourth proportional to 160.98, 221.82 and 124.03 is: 170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.98 : 221.82 = 124.03 : x
  2. Step 2: Convert to fraction form
    160.98/221.82 = 124.03/x
  3. Step 3: Cross multiply
    160.98x = 221.82 × 124.03
  4. Step 4: Simplify right side
    160.98x = 27,511.23
  5. Step 5: Solve for x
    x = 27,511.23/160.98
  6. Step 6: Final answer
    x = 170.90

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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.