Home / 205,799.78-308,474.46-105,965.96

Finding the Fourth Proportional to 205,799.78, 308,474.46 and 105,965.96

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Solution

The fourth proportional to 205,799.78, 308,474.46 and 105,965.96 is: 158,832.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,799.78 : 308,474.46 = 105,965.96 : x
  2. Step 2: Convert to fraction form
    205,799.78/308,474.46 = 105,965.96/x
  3. Step 3: Cross multiply
    205,799.78x = 308,474.46 × 105,965.96
  4. Step 4: Simplify right side
    205,799.78x = 32,687,790,747.01
  5. Step 5: Solve for x
    x = 32,687,790,747.01/205,799.78
  6. Step 6: Final answer
    x = 158,832.98

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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.