Home / 126,125.90-189,183.38-31,354.10

Finding the Fourth Proportional to 126,125.90, 189,183.38 and 31,354.10

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Solution

The fourth proportional to 126,125.90, 189,183.38 and 31,354.10 is: 47,029.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,125.90 : 189,183.38 = 31,354.10 : x
  2. Step 2: Convert to fraction form
    126,125.90/189,183.38 = 31,354.10/x
  3. Step 3: Cross multiply
    126,125.90x = 189,183.38 × 31,354.10
  4. Step 4: Simplify right side
    126,125.90x = 5,931,673,512.17
  5. Step 5: Solve for x
    x = 5,931,673,512.17/126,125.90
  6. Step 6: Final answer
    x = 47,029.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.