Home / 283,787.21-425,747.64-84,109.25

Finding the Fourth Proportional to 283,787.21, 425,747.64 and 84,109.25

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Solution

The fourth proportional to 283,787.21, 425,747.64 and 84,109.25 is: 126,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,787.21 : 425,747.64 = 84,109.25 : x
  2. Step 2: Convert to fraction form
    283,787.21/425,747.64 = 84,109.25/x
  3. Step 3: Cross multiply
    283,787.21x = 425,747.64 × 84,109.25
  4. Step 4: Simplify right side
    283,787.21x = 35,809,312,560.93
  5. Step 5: Solve for x
    x = 35,809,312,560.93/283,787.21
  6. Step 6: Final answer
    x = 126,183.68

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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.