Home / 260,986.20-391,537.68-83,503.84

Finding the Fourth Proportional to 260,986.20, 391,537.68 and 83,503.84

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Solution

The fourth proportional to 260,986.20, 391,537.68 and 83,503.84 is: 125,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,986.20 : 391,537.68 = 83,503.84 : x
  2. Step 2: Convert to fraction form
    260,986.20/391,537.68 = 83,503.84/x
  3. Step 3: Cross multiply
    260,986.20x = 391,537.68 × 83,503.84
  4. Step 4: Simplify right side
    260,986.20x = 32,694,899,784.69
  5. Step 5: Solve for x
    x = 32,694,899,784.69/260,986.20
  6. Step 6: Final answer
    x = 125,274.44

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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.