Home / 100,169.28-150,253.92-40,991.76

Finding the Fourth Proportional to 100,169.28, 150,253.92 and 40,991.76

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Solution

The fourth proportional to 100,169.28, 150,253.92 and 40,991.76 is: 61,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,169.28 : 150,253.92 = 40,991.76 : x
  2. Step 2: Convert to fraction form
    100,169.28/150,253.92 = 40,991.76/x
  3. Step 3: Cross multiply
    100,169.28x = 150,253.92 × 40,991.76
  4. Step 4: Simplify right side
    100,169.28x = 6,159,172,627.70
  5. Step 5: Solve for x
    x = 6,159,172,627.70/100,169.28
  6. Step 6: Final answer
    x = 61,487.64

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1.5x scale

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.