Home / 128,023.38-192,057.81-43,792.86

Finding the Fourth Proportional to 128,023.38, 192,057.81 and 43,792.86

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Solution

The fourth proportional to 128,023.38, 192,057.81 and 43,792.86 is: 65,697.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,023.38 : 192,057.81 = 43,792.86 : x
  2. Step 2: Convert to fraction form
    128,023.38/192,057.81 = 43,792.86/x
  3. Step 3: Cross multiply
    128,023.38x = 192,057.81 × 43,792.86
  4. Step 4: Simplify right side
    128,023.38x = 8,410,760,785.24
  5. Step 5: Solve for x
    x = 8,410,760,785.24/128,023.38
  6. Step 6: Final answer
    x = 65,697.07

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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.