Home / 166,902.20-230,323.53-90,419.54

Finding the Fourth Proportional to 166,902.20, 230,323.53 and 90,419.54

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Solution

The fourth proportional to 166,902.20, 230,323.53 and 90,419.54 is: 124,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,902.20 : 230,323.53 = 90,419.54 : x
  2. Step 2: Convert to fraction form
    166,902.20/230,323.53 = 90,419.54/x
  3. Step 3: Cross multiply
    166,902.20x = 230,323.53 × 90,419.54
  4. Step 4: Simplify right side
    166,902.20x = 20,825,747,633.78
  5. Step 5: Solve for x
    x = 20,825,747,633.78/166,902.20
  6. Step 6: Final answer
    x = 124,778.15

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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.