Home / 107,930.80-161,826.12-51,769.60

Finding the Fourth Proportional to 107,930.80, 161,826.12 and 51,769.60

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Solution

The fourth proportional to 107,930.80, 161,826.12 and 51,769.60 is: 77,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,930.80 : 161,826.12 = 51,769.60 : x
  2. Step 2: Convert to fraction form
    107,930.80/161,826.12 = 51,769.60/x
  3. Step 3: Cross multiply
    107,930.80x = 161,826.12 × 51,769.60
  4. Step 4: Simplify right side
    107,930.80x = 8,377,673,501.95
  5. Step 5: Solve for x
    x = 8,377,673,501.95/107,930.80
  6. Step 6: Final answer
    x = 77,620.79

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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.