Home / 131,982.20-197,973.30-82,215.80

Finding the Fourth Proportional to 131,982.20, 197,973.30 and 82,215.80

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Solution

The fourth proportional to 131,982.20, 197,973.30 and 82,215.80 is: 123,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,982.20 : 197,973.30 = 82,215.80 : x
  2. Step 2: Convert to fraction form
    131,982.20/197,973.30 = 82,215.80/x
  3. Step 3: Cross multiply
    131,982.20x = 197,973.30 × 82,215.80
  4. Step 4: Simplify right side
    131,982.20x = 16,276,533,238.14
  5. Step 5: Solve for x
    x = 16,276,533,238.14/131,982.20
  6. Step 6: Final answer
    x = 123,323.70

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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.