Home / 139,310.04-192,251.82-81,953.58

Finding the Fourth Proportional to 139,310.04, 192,251.82 and 81,953.58

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Solution

The fourth proportional to 139,310.04, 192,251.82 and 81,953.58 is: 113,098.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,310.04 : 192,251.82 = 81,953.58 : x
  2. Step 2: Convert to fraction form
    139,310.04/192,251.82 = 81,953.58/x
  3. Step 3: Cross multiply
    139,310.04x = 192,251.82 × 81,953.58
  4. Step 4: Simplify right side
    139,310.04x = 15,755,724,910.52
  5. Step 5: Solve for x
    x = 15,755,724,910.52/139,310.04
  6. Step 6: Final answer
    x = 113,098.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.