Home / 220,115.03-303,759.86-124,640.33

Finding the Fourth Proportional to 220,115.03, 303,759.86 and 124,640.33

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Solution

The fourth proportional to 220,115.03, 303,759.86 and 124,640.33 is: 172,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,115.03 : 303,759.86 = 124,640.33 : x
  2. Step 2: Convert to fraction form
    220,115.03/303,759.86 = 124,640.33/x
  3. Step 3: Cross multiply
    220,115.03x = 303,759.86 × 124,640.33
  4. Step 4: Simplify right side
    220,115.03x = 37,860,727,049.15
  5. Step 5: Solve for x
    x = 37,860,727,049.15/220,115.03
  6. Step 6: Final answer
    x = 172,004.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.