Home / 131,974.80-197,960.40-43,231.20

Finding the Fourth Proportional to 131,974.80, 197,960.40 and 43,231.20

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Solution

The fourth proportional to 131,974.80, 197,960.40 and 43,231.20 is: 64,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,974.80 : 197,960.40 = 43,231.20 : x
  2. Step 2: Convert to fraction form
    131,974.80/197,960.40 = 43,231.20/x
  3. Step 3: Cross multiply
    131,974.80x = 197,960.40 × 43,231.20
  4. Step 4: Simplify right side
    131,974.80x = 8,558,065,644.48
  5. Step 5: Solve for x
    x = 8,558,065,644.48/131,974.80
  6. Step 6: Final answer
    x = 64,846.21

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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.