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Finding the Fourth Proportional to 166,791.70, 230,170.82 and 90,309.48

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Solution

The fourth proportional to 166,791.70, 230,170.82 and 90,309.48 is: 124,626.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,791.70 : 230,170.82 = 90,309.48 : x
  2. Step 2: Convert to fraction form
    166,791.70/230,170.82 = 90,309.48/x
  3. Step 3: Cross multiply
    166,791.70x = 230,170.82 × 90,309.48
  4. Step 4: Simplify right side
    166,791.70x = 20,786,607,065.37
  5. Step 5: Solve for x
    x = 20,786,607,065.37/166,791.70
  6. Step 6: Final answer
    x = 124,626.15

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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.