Home / 166,129.92-229,261.68-90,676.80

Finding the Fourth Proportional to 166,129.92, 229,261.68 and 90,676.80

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Solution

The fourth proportional to 166,129.92, 229,261.68 and 90,676.80 is: 125,135.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,129.92 : 229,261.68 = 90,676.80 : x
  2. Step 2: Convert to fraction form
    166,129.92/229,261.68 = 90,676.80/x
  3. Step 3: Cross multiply
    166,129.92x = 229,261.68 × 90,676.80
  4. Step 4: Simplify right side
    166,129.92x = 20,788,715,505.02
  5. Step 5: Solve for x
    x = 20,788,715,505.02/166,129.92
  6. Step 6: Final answer
    x = 125,135.29

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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.