Home / 269,929.12-405,142.76-136,902.80

Finding the Fourth Proportional to 269,929.12, 405,142.76 and 136,902.80

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Solution

The fourth proportional to 269,929.12, 405,142.76 and 136,902.80 is: 205,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,929.12 : 405,142.76 = 136,902.80 : x
  2. Step 2: Convert to fraction form
    269,929.12/405,142.76 = 136,902.80/x
  3. Step 3: Cross multiply
    269,929.12x = 405,142.76 × 136,902.80
  4. Step 4: Simplify right side
    269,929.12x = 55,465,178,243.73
  5. Step 5: Solve for x
    x = 55,465,178,243.73/269,929.12
  6. Step 6: Final answer
    x = 205,480.53

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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.