Home / 220,279.07-303,987.26-124,783.72

Finding the Fourth Proportional to 220,279.07, 303,987.26 and 124,783.72

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Solution

The fourth proportional to 220,279.07, 303,987.26 and 124,783.72 is: 172,202.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,279.07 : 303,987.26 = 124,783.72 : x
  2. Step 2: Convert to fraction form
    220,279.07/303,987.26 = 124,783.72/x
  3. Step 3: Cross multiply
    220,279.07x = 303,987.26 × 124,783.72
  4. Step 4: Simplify right side
    220,279.07x = 37,932,661,135.41
  5. Step 5: Solve for x
    x = 37,932,661,135.41/220,279.07
  6. Step 6: Final answer
    x = 172,202.75

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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.