Home / 263,200.19-394,799.81-85,706.91

Finding the Fourth Proportional to 263,200.19, 394,799.81 and 85,706.91

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Solution

The fourth proportional to 263,200.19, 394,799.81 and 85,706.91 is: 128,560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,200.19 : 394,799.81 = 85,706.91 : x
  2. Step 2: Convert to fraction form
    263,200.19/394,799.81 = 85,706.91/x
  3. Step 3: Cross multiply
    263,200.19x = 394,799.81 × 85,706.91
  4. Step 4: Simplify right side
    263,200.19x = 33,837,071,355.15
  5. Step 5: Solve for x
    x = 33,837,071,355.15/263,200.19
  6. Step 6: Final answer
    x = 128,560.21

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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.