Home / 131,645.92-197,009.52-107,676.40

Finding the Fourth Proportional to 131,645.92, 197,009.52 and 107,676.40

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Solution

The fourth proportional to 131,645.92, 197,009.52 and 107,676.40 is: 161,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,645.92 : 197,009.52 = 107,676.40 : x
  2. Step 2: Convert to fraction form
    131,645.92/197,009.52 = 107,676.40/x
  3. Step 3: Cross multiply
    131,645.92x = 197,009.52 × 107,676.40
  4. Step 4: Simplify right side
    131,645.92x = 21,213,275,879.33
  5. Step 5: Solve for x
    x = 21,213,275,879.33/131,645.92
  6. Step 6: Final answer
    x = 161,138.88

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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.