Home / 100,003.20-150,022.08-40,871.04

Finding the Fourth Proportional to 100,003.20, 150,022.08 and 40,871.04

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Solution

The fourth proportional to 100,003.20, 150,022.08 and 40,871.04 is: 61,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,003.20 : 150,022.08 = 40,871.04 : x
  2. Step 2: Convert to fraction form
    100,003.20/150,022.08 = 40,871.04/x
  3. Step 3: Cross multiply
    100,003.20x = 150,022.08 × 40,871.04
  4. Step 4: Simplify right side
    100,003.20x = 6,131,558,432.56
  5. Step 5: Solve for x
    x = 6,131,558,432.56/100,003.20
  6. Step 6: Final answer
    x = 61,313.62

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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.