Home / 215,301.58-322,953.99-82,146.04

Finding the Fourth Proportional to 215,301.58, 322,953.99 and 82,146.04

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Solution

The fourth proportional to 215,301.58, 322,953.99 and 82,146.04 is: 123,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,301.58 : 322,953.99 = 82,146.04 : x
  2. Step 2: Convert to fraction form
    215,301.58/322,953.99 = 82,146.04/x
  3. Step 3: Cross multiply
    215,301.58x = 322,953.99 × 82,146.04
  4. Step 4: Simplify right side
    215,301.58x = 26,529,391,380.70
  5. Step 5: Solve for x
    x = 26,529,391,380.70/215,301.58
  6. Step 6: Final answer
    x = 123,219.68

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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.