Home / 131,804.41-197,319.03-81,723.73

Finding the Fourth Proportional to 131,804.41, 197,319.03 and 81,723.73

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Solution

The fourth proportional to 131,804.41, 197,319.03 and 81,723.73 is: 122,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,804.41 : 197,319.03 = 81,723.73 : x
  2. Step 2: Convert to fraction form
    131,804.41/197,319.03 = 81,723.73/x
  3. Step 3: Cross multiply
    131,804.41x = 197,319.03 × 81,723.73
  4. Step 4: Simplify right side
    131,804.41x = 16,125,647,131.58
  5. Step 5: Solve for x
    x = 16,125,647,131.58/131,804.41
  6. Step 6: Final answer
    x = 122,345.28

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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.