Home / 128,373.10-192,512.49-44,109.36

Finding the Fourth Proportional to 128,373.10, 192,512.49 and 44,109.36

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Solution

The fourth proportional to 128,373.10, 192,512.49 and 44,109.36 is: 66,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,373.10 : 192,512.49 = 44,109.36 : x
  2. Step 2: Convert to fraction form
    128,373.10/192,512.49 = 44,109.36/x
  3. Step 3: Cross multiply
    128,373.10x = 192,512.49 × 44,109.36
  4. Step 4: Simplify right side
    128,373.10x = 8,491,601,763.34
  5. Step 5: Solve for x
    x = 8,491,601,763.34/128,373.10
  6. Step 6: Final answer
    x = 66,147.83

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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.