Home / 166,128.42-229,257.22-90,676.92

Finding the Fourth Proportional to 166,128.42, 229,257.22 and 90,676.92

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Solution

The fourth proportional to 166,128.42, 229,257.22 and 90,676.92 is: 125,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,128.42 : 229,257.22 = 90,676.92 : x
  2. Step 2: Convert to fraction form
    166,128.42/229,257.22 = 90,676.92/x
  3. Step 3: Cross multiply
    166,128.42x = 229,257.22 × 90,676.92
  4. Step 4: Simplify right side
    166,128.42x = 20,788,336,997.69
  5. Step 5: Solve for x
    x = 20,788,336,997.69/166,128.42
  6. Step 6: Final answer
    x = 125,134.14

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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.