Home / 87,455.67-131,183.51-83,206.41

Finding the Fourth Proportional to 87,455.67, 131,183.51 and 83,206.41

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Solution

The fourth proportional to 87,455.67, 131,183.51 and 83,206.41 is: 124,809.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,455.67 : 131,183.51 = 83,206.41 : x
  2. Step 2: Convert to fraction form
    87,455.67/131,183.51 = 83,206.41/x
  3. Step 3: Cross multiply
    87,455.67x = 131,183.51 × 83,206.41
  4. Step 4: Simplify right side
    87,455.67x = 10,915,308,918.30
  5. Step 5: Solve for x
    x = 10,915,308,918.30/87,455.67
  6. Step 6: Final answer
    x = 124,809.62

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1.5x scale

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.