Home / 206,317.09-309,373.48-73,177.39

Finding the Fourth Proportional to 206,317.09, 309,373.48 and 73,177.39

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Solution

The fourth proportional to 206,317.09, 309,373.48 and 73,177.39 is: 109,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,317.09 : 309,373.48 = 73,177.39 : x
  2. Step 2: Convert to fraction form
    206,317.09/309,373.48 = 73,177.39/x
  3. Step 3: Cross multiply
    206,317.09x = 309,373.48 × 73,177.39
  4. Step 4: Simplify right side
    206,317.09x = 22,639,143,801.62
  5. Step 5: Solve for x
    x = 22,639,143,801.62/206,317.09
  6. Step 6: Final answer
    x = 109,729.85

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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.