Home / 136,105.84-187,781.10-82,370.44

Finding the Fourth Proportional to 136,105.84, 187,781.10 and 82,370.44

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Solution

The fourth proportional to 136,105.84, 187,781.10 and 82,370.44 is: 113,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,105.84 : 187,781.10 = 82,370.44 : x
  2. Step 2: Convert to fraction form
    136,105.84/187,781.10 = 82,370.44/x
  3. Step 3: Cross multiply
    136,105.84x = 187,781.10 × 82,370.44
  4. Step 4: Simplify right side
    136,105.84x = 15,467,611,830.68
  5. Step 5: Solve for x
    x = 15,467,611,830.68/136,105.84
  6. Step 6: Final answer
    x = 113,644.00

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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.