Home / 126,843.56-175,126.02-79,116.20

Finding the Fourth Proportional to 126,843.56, 175,126.02 and 79,116.20

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Solution

The fourth proportional to 126,843.56, 175,126.02 and 79,116.20 is: 109,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.56 : 175,126.02 = 79,116.20 : x
  2. Step 2: Convert to fraction form
    126,843.56/175,126.02 = 79,116.20/x
  3. Step 3: Cross multiply
    126,843.56x = 175,126.02 × 79,116.20
  4. Step 4: Simplify right side
    126,843.56x = 13,855,305,223.52
  5. Step 5: Solve for x
    x = 13,855,305,223.52/126,843.56
  6. Step 6: Final answer
    x = 109,231.44

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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.