Home / 103,996.65-155,982.93-29,122.80

Finding the Fourth Proportional to 103,996.65, 155,982.93 and 29,122.80

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Solution

The fourth proportional to 103,996.65, 155,982.93 and 29,122.80 is: 43,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,996.65 : 155,982.93 = 29,122.80 : x
  2. Step 2: Convert to fraction form
    103,996.65/155,982.93 = 29,122.80/x
  3. Step 3: Cross multiply
    103,996.65x = 155,982.93 × 29,122.80
  4. Step 4: Simplify right side
    103,996.65x = 4,542,659,673.80
  5. Step 5: Solve for x
    x = 4,542,659,673.80/103,996.65
  6. Step 6: Final answer
    x = 43,680.83

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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.