Home / 131,057.03-196,297.40-108,309.90

Finding the Fourth Proportional to 131,057.03, 196,297.40 and 108,309.90

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Solution

The fourth proportional to 131,057.03, 196,297.40 and 108,309.90 is: 162,226.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,057.03 : 196,297.40 = 108,309.90 : x
  2. Step 2: Convert to fraction form
    131,057.03/196,297.40 = 108,309.90/x
  3. Step 3: Cross multiply
    131,057.03x = 196,297.40 × 108,309.90
  4. Step 4: Simplify right side
    131,057.03x = 21,260,951,222.71
  5. Step 5: Solve for x
    x = 21,260,951,222.71/131,057.03
  6. Step 6: Final answer
    x = 162,226.72

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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.