Home / 204,917.88-282,722.22-123,209.40

Finding the Fourth Proportional to 204,917.88, 282,722.22 and 123,209.40

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Solution

The fourth proportional to 204,917.88, 282,722.22 and 123,209.40 is: 169,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,917.88 : 282,722.22 = 123,209.40 : x
  2. Step 2: Convert to fraction form
    204,917.88/282,722.22 = 123,209.40/x
  3. Step 3: Cross multiply
    204,917.88x = 282,722.22 × 123,209.40
  4. Step 4: Simplify right side
    204,917.88x = 34,834,035,092.87
  5. Step 5: Solve for x
    x = 34,834,035,092.87/204,917.88
  6. Step 6: Final answer
    x = 169,990.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.