Home / 128,819.52-193,348.22-92,833.38

Finding the Fourth Proportional to 128,819.52, 193,348.22 and 92,833.38

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Solution

The fourth proportional to 128,819.52, 193,348.22 and 92,833.38 is: 139,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,819.52 : 193,348.22 = 92,833.38 : x
  2. Step 2: Convert to fraction form
    128,819.52/193,348.22 = 92,833.38/x
  3. Step 3: Cross multiply
    128,819.52x = 193,348.22 × 92,833.38
  4. Step 4: Simplify right side
    128,819.52x = 17,949,168,315.42
  5. Step 5: Solve for x
    x = 17,949,168,315.42/128,819.52
  6. Step 6: Final answer
    x = 139,335.78

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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.