Home / 103,439.60-155,183.66-33,316.28

Finding the Fourth Proportional to 103,439.60, 155,183.66 and 33,316.28

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Solution

The fourth proportional to 103,439.60, 155,183.66 and 33,316.28 is: 49,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439.60 : 155,183.66 = 33,316.28 : x
  2. Step 2: Convert to fraction form
    103,439.60/155,183.66 = 33,316.28/x
  3. Step 3: Cross multiply
    103,439.60x = 155,183.66 × 33,316.28
  4. Step 4: Simplify right side
    103,439.60x = 5,170,142,267.98
  5. Step 5: Solve for x
    x = 5,170,142,267.98/103,439.60
  6. Step 6: Final answer
    x = 49,982.23

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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.