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Finding the Fourth Proportional to 151.93, 209.67 and 93.73

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Solution

The fourth proportional to 151.93, 209.67 and 93.73 is: 129.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.93 : 209.67 = 93.73 : x
  2. Step 2: Convert to fraction form
    151.93/209.67 = 93.73/x
  3. Step 3: Cross multiply
    151.93x = 209.67 × 93.73
  4. Step 4: Simplify right side
    151.93x = 19,652.37
  5. Step 5: Solve for x
    x = 19,652.37/151.93
  6. Step 6: Final answer
    x = 129.35

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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.