Home / 126,984.35-175,202.96-100,043.25

Finding the Fourth Proportional to 126,984.35, 175,202.96 and 100,043.25

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Solution

The fourth proportional to 126,984.35, 175,202.96 and 100,043.25 is: 138,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,984.35 : 175,202.96 = 100,043.25 : x
  2. Step 2: Convert to fraction form
    126,984.35/175,202.96 = 100,043.25/x
  3. Step 3: Cross multiply
    126,984.35x = 175,202.96 × 100,043.25
  4. Step 4: Simplify right side
    126,984.35x = 17,527,873,027.80
  5. Step 5: Solve for x
    x = 17,527,873,027.80/126,984.35
  6. Step 6: Final answer
    x = 138,031.76

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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.