Home / 166,122.82-229,249.20-90,671.32

Finding the Fourth Proportional to 166,122.82, 229,249.20 and 90,671.32

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Solution

The fourth proportional to 166,122.82, 229,249.20 and 90,671.32 is: 125,126.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,122.82 : 229,249.20 = 90,671.32 : x
  2. Step 2: Convert to fraction form
    166,122.82/229,249.20 = 90,671.32/x
  3. Step 3: Cross multiply
    166,122.82x = 229,249.20 × 90,671.32
  4. Step 4: Simplify right side
    166,122.82x = 20,786,327,572.94
  5. Step 5: Solve for x
    x = 20,786,327,572.94/166,122.82
  6. Step 6: Final answer
    x = 125,126.26

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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.