Home / 109,037.72-150,740.40-108,039.80

Finding the Fourth Proportional to 109,037.72, 150,740.40 and 108,039.80

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Solution

The fourth proportional to 109,037.72, 150,740.40 and 108,039.80 is: 149,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,037.72 : 150,740.40 = 108,039.80 : x
  2. Step 2: Convert to fraction form
    109,037.72/150,740.40 = 108,039.80/x
  3. Step 3: Cross multiply
    109,037.72x = 150,740.40 × 108,039.80
  4. Step 4: Simplify right side
    109,037.72x = 16,285,962,667.92
  5. Step 5: Solve for x
    x = 16,285,962,667.92/109,037.72
  6. Step 6: Final answer
    x = 149,360.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.