Home / 107,945.20-161,879.40-48,809.20

Finding the Fourth Proportional to 107,945.20, 161,879.40 and 48,809.20

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Solution

The fourth proportional to 107,945.20, 161,879.40 and 48,809.20 is: 73,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,945.20 : 161,879.40 = 48,809.20 : x
  2. Step 2: Convert to fraction form
    107,945.20/161,879.40 = 48,809.20/x
  3. Step 3: Cross multiply
    107,945.20x = 161,879.40 × 48,809.20
  4. Step 4: Simplify right side
    107,945.20x = 7,901,204,010.48
  5. Step 5: Solve for x
    x = 7,901,204,010.48/107,945.20
  6. Step 6: Final answer
    x = 73,196.44

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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.