Home / 107,944.20-161,916.30-100,945.80

Finding the Fourth Proportional to 107,944.20, 161,916.30 and 100,945.80

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Solution

The fourth proportional to 107,944.20, 161,916.30 and 100,945.80 is: 151,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,944.20 : 161,916.30 = 100,945.80 : x
  2. Step 2: Convert to fraction form
    107,944.20/161,916.30 = 100,945.80/x
  3. Step 3: Cross multiply
    107,944.20x = 161,916.30 × 100,945.80
  4. Step 4: Simplify right side
    107,944.20x = 16,344,770,436.54
  5. Step 5: Solve for x
    x = 16,344,770,436.54/107,944.20
  6. Step 6: Final answer
    x = 151,418.70

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1.5x scale

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.