Home / 128,932.14-193,407.24-53,976.62

Finding the Fourth Proportional to 128,932.14, 193,407.24 and 53,976.62

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Solution

The fourth proportional to 128,932.14, 193,407.24 and 53,976.62 is: 80,968.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,932.14 : 193,407.24 = 53,976.62 : x
  2. Step 2: Convert to fraction form
    128,932.14/193,407.24 = 53,976.62/x
  3. Step 3: Cross multiply
    128,932.14x = 193,407.24 × 53,976.62
  4. Step 4: Simplify right side
    128,932.14x = 10,439,469,098.73
  5. Step 5: Solve for x
    x = 10,439,469,098.73/128,932.14
  6. Step 6: Final answer
    x = 80,968.71

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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.