Home / 126,969.30-175,182.19-100,028.20

Finding the Fourth Proportional to 126,969.30, 175,182.19 and 100,028.20

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Solution

The fourth proportional to 126,969.30, 175,182.19 and 100,028.20 is: 138,010.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,969.30 : 175,182.19 = 100,028.20 : x
  2. Step 2: Convert to fraction form
    126,969.30/175,182.19 = 100,028.20/x
  3. Step 3: Cross multiply
    126,969.30x = 175,182.19 × 100,028.20
  4. Step 4: Simplify right side
    126,969.30x = 17,523,158,449.73
  5. Step 5: Solve for x
    x = 17,523,158,449.73/126,969.30
  6. Step 6: Final answer
    x = 138,010.98

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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.