Home / 128,119.68-192,179.52-57,997.44

Finding the Fourth Proportional to 128,119.68, 192,179.52 and 57,997.44

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Solution

The fourth proportional to 128,119.68, 192,179.52 and 57,997.44 is: 86,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,119.68 : 192,179.52 = 57,997.44 : x
  2. Step 2: Convert to fraction form
    128,119.68/192,179.52 = 57,997.44/x
  3. Step 3: Cross multiply
    128,119.68x = 192,179.52 × 57,997.44
  4. Step 4: Simplify right side
    128,119.68x = 11,145,920,180.43
  5. Step 5: Solve for x
    x = 11,145,920,180.43/128,119.68
  6. Step 6: Final answer
    x = 86,996.16

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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.