Home / 128,175.87-192,231.41-38,197.83

Finding the Fourth Proportional to 128,175.87, 192,231.41 and 38,197.83

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Solution

The fourth proportional to 128,175.87, 192,231.41 and 38,197.83 is: 57,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,175.87 : 192,231.41 = 38,197.83 : x
  2. Step 2: Convert to fraction form
    128,175.87/192,231.41 = 38,197.83/x
  3. Step 3: Cross multiply
    128,175.87x = 192,231.41 × 38,197.83
  4. Step 4: Simplify right side
    128,175.87x = 7,342,822,528.85
  5. Step 5: Solve for x
    x = 7,342,822,528.85/128,175.87
  6. Step 6: Final answer
    x = 57,287.09

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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.