Home / 127,917.27-191,876.36-39,170.39

Finding the Fourth Proportional to 127,917.27, 191,876.36 and 39,170.39

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Solution

The fourth proportional to 127,917.27, 191,876.36 and 39,170.39 is: 58,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,917.27 : 191,876.36 = 39,170.39 : x
  2. Step 2: Convert to fraction form
    127,917.27/191,876.36 = 39,170.39/x
  3. Step 3: Cross multiply
    127,917.27x = 191,876.36 × 39,170.39
  4. Step 4: Simplify right side
    127,917.27x = 7,515,870,697.75
  5. Step 5: Solve for x
    x = 7,515,870,697.75/127,917.27
  6. Step 6: Final answer
    x = 58,755.72

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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.