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Finding the Fourth Proportional to 167,121.41, 230,627.66 and 90,640.51

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Solution

The fourth proportional to 167,121.41, 230,627.66 and 90,640.51 is: 125,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,121.41 : 230,627.66 = 90,640.51 : x
  2. Step 2: Convert to fraction form
    167,121.41/230,627.66 = 90,640.51/x
  3. Step 3: Cross multiply
    167,121.41x = 230,627.66 × 90,640.51
  4. Step 4: Simplify right side
    167,121.41x = 20,904,207,692.73
  5. Step 5: Solve for x
    x = 20,904,207,692.73/167,121.41
  6. Step 6: Final answer
    x = 125,083.96

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1.5x scale

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.