Home / 126,910.80-190,452.32-67,788.88

Finding the Fourth Proportional to 126,910.80, 190,452.32 and 67,788.88

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Solution

The fourth proportional to 126,910.80, 190,452.32 and 67,788.88 is: 101,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,910.80 : 190,452.32 = 67,788.88 : x
  2. Step 2: Convert to fraction form
    126,910.80/190,452.32 = 67,788.88/x
  3. Step 3: Cross multiply
    126,910.80x = 190,452.32 × 67,788.88
  4. Step 4: Simplify right side
    126,910.80x = 12,910,549,466.20
  5. Step 5: Solve for x
    x = 12,910,549,466.20/126,910.80
  6. Step 6: Final answer
    x = 101,729.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.