Home / 261,179.40-391,769.10-83,704.35

Finding the Fourth Proportional to 261,179.40, 391,769.10 and 83,704.35

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Solution

The fourth proportional to 261,179.40, 391,769.10 and 83,704.35 is: 125,556.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,179.40 : 391,769.10 = 83,704.35 : x
  2. Step 2: Convert to fraction form
    261,179.40/391,769.10 = 83,704.35/x
  3. Step 3: Cross multiply
    261,179.40x = 391,769.10 × 83,704.35
  4. Step 4: Simplify right side
    261,179.40x = 32,792,777,865.59
  5. Step 5: Solve for x
    x = 32,792,777,865.59/261,179.40
  6. Step 6: Final answer
    x = 125,556.53

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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.