Home / 107,921.40-161,805.30-41,335.80

Finding the Fourth Proportional to 107,921.40, 161,805.30 and 41,335.80

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Solution

The fourth proportional to 107,921.40, 161,805.30 and 41,335.80 is: 61,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,921.40 : 161,805.30 = 41,335.80 : x
  2. Step 2: Convert to fraction form
    107,921.40/161,805.30 = 41,335.80/x
  3. Step 3: Cross multiply
    107,921.40x = 161,805.30 × 41,335.80
  4. Step 4: Simplify right side
    107,921.40x = 6,688,351,519.74
  5. Step 5: Solve for x
    x = 6,688,351,519.74/107,921.40
  6. Step 6: Final answer
    x = 61,974.28

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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.