Home / 166,164.03-229,305.20-90,712.53

Finding the Fourth Proportional to 166,164.03, 229,305.20 and 90,712.53

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Solution

The fourth proportional to 166,164.03, 229,305.20 and 90,712.53 is: 125,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,164.03 : 229,305.20 = 90,712.53 : x
  2. Step 2: Convert to fraction form
    166,164.03/229,305.20 = 90,712.53/x
  3. Step 3: Cross multiply
    166,164.03x = 229,305.20 × 90,712.53
  4. Step 4: Simplify right side
    166,164.03x = 20,800,854,380.59
  5. Step 5: Solve for x
    x = 20,800,854,380.59/166,164.03
  6. Step 6: Final answer
    x = 125,182.65

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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.