Home / 124,987,313.80-187,452,977.10-82,157,105.80

Finding the Fourth Proportional to 124,987,313.80, 187,452,977.10 and 82,157,105.80

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Solution

The fourth proportional to 124,987,313.80, 187,452,977.10 and 82,157,105.80 is: 123,217,257.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,987,313.80 : 187,452,977.10 = 82,157,105.80 : x
  2. Step 2: Convert to fraction form
    124,987,313.80/187,452,977.10 = 82,157,105.80/x
  3. Step 3: Cross multiply
    124,987,313.80x = 187,452,977.10 × 82,157,105.80
  4. Step 4: Simplify right side
    124,987,313.80x = 15,400,594,072,129,676
  5. Step 5: Solve for x
    x = 15,400,594,072,129,676/124,987,313.80
  6. Step 6: Final answer
    x = 123,217,257.85

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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.