Home / 103,022.20-154,418.10-43,847.80

Finding the Fourth Proportional to 103,022.20, 154,418.10 and 43,847.80

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Solution

The fourth proportional to 103,022.20, 154,418.10 and 43,847.80 is: 65,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,022.20 : 154,418.10 = 43,847.80 : x
  2. Step 2: Convert to fraction form
    103,022.20/154,418.10 = 43,847.80/x
  3. Step 3: Cross multiply
    103,022.20x = 154,418.10 × 43,847.80
  4. Step 4: Simplify right side
    103,022.20x = 6,770,893,965.18
  5. Step 5: Solve for x
    x = 6,770,893,965.18/103,022.20
  6. Step 6: Final answer
    x = 65,722.67

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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.