Home / 158,553.38-218,676.60-139,392.44

Finding the Fourth Proportional to 158,553.38, 218,676.60 and 139,392.44

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Solution

The fourth proportional to 158,553.38, 218,676.60 and 139,392.44 is: 192,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,553.38 : 218,676.60 = 139,392.44 : x
  2. Step 2: Convert to fraction form
    158,553.38/218,676.60 = 139,392.44/x
  3. Step 3: Cross multiply
    158,553.38x = 218,676.60 × 139,392.44
  4. Step 4: Simplify right side
    158,553.38x = 30,481,864,844.90
  5. Step 5: Solve for x
    x = 30,481,864,844.90/158,553.38
  6. Step 6: Final answer
    x = 192,249.86

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1.5x scale

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.