Home / 127,917.15-191,876.17-39,170.26

Finding the Fourth Proportional to 127,917.15, 191,876.17 and 39,170.26

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Solution

The fourth proportional to 127,917.15, 191,876.17 and 39,170.26 is: 58,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,917.15 : 191,876.17 = 39,170.26 : x
  2. Step 2: Convert to fraction form
    127,917.15/191,876.17 = 39,170.26/x
  3. Step 3: Cross multiply
    127,917.15x = 191,876.17 × 39,170.26
  4. Step 4: Simplify right side
    127,917.15x = 7,515,839,466.70
  5. Step 5: Solve for x
    x = 7,515,839,466.70/127,917.15
  6. Step 6: Final answer
    x = 58,755.53

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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.