Home / 131,908.80-197,890.88-43,155.44

Finding the Fourth Proportional to 131,908.80, 197,890.88 and 43,155.44

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Solution

The fourth proportional to 131,908.80, 197,890.88 and 43,155.44 is: 64,742.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,908.80 : 197,890.88 = 43,155.44 : x
  2. Step 2: Convert to fraction form
    131,908.80/197,890.88 = 43,155.44/x
  3. Step 3: Cross multiply
    131,908.80x = 197,890.88 × 43,155.44
  4. Step 4: Simplify right side
    131,908.80x = 8,540,067,998.39
  5. Step 5: Solve for x
    x = 8,540,067,998.39/131,908.80
  6. Step 6: Final answer
    x = 64,742.22

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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.