Home / 151,917.85-209,645.44-83,939.41

Finding the Fourth Proportional to 151,917.85, 209,645.44 and 83,939.41

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Solution

The fourth proportional to 151,917.85, 209,645.44 and 83,939.41 is: 115,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,917.85 : 209,645.44 = 83,939.41 : x
  2. Step 2: Convert to fraction form
    151,917.85/209,645.44 = 83,939.41/x
  3. Step 3: Cross multiply
    151,917.85x = 209,645.44 × 83,939.41
  4. Step 4: Simplify right side
    151,917.85x = 17,597,514,542.79
  5. Step 5: Solve for x
    x = 17,597,514,542.79/151,917.85
  6. Step 6: Final answer
    x = 115,835.73

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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.