Home / 206,076.39-309,158.86-63,918.69

Finding the Fourth Proportional to 206,076.39, 309,158.86 and 63,918.69

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Solution

The fourth proportional to 206,076.39, 309,158.86 and 63,918.69 is: 95,891.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,076.39 : 309,158.86 = 63,918.69 : x
  2. Step 2: Convert to fraction form
    206,076.39/309,158.86 = 63,918.69/x
  3. Step 3: Cross multiply
    206,076.39x = 309,158.86 × 63,918.69
  4. Step 4: Simplify right side
    206,076.39x = 19,761,029,333.09
  5. Step 5: Solve for x
    x = 19,761,029,333.09/206,076.39
  6. Step 6: Final answer
    x = 95,891.77

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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.