Home / 126,952.80-190,429.20-79,713.60

Finding the Fourth Proportional to 126,952.80, 190,429.20 and 79,713.60

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Solution

The fourth proportional to 126,952.80, 190,429.20 and 79,713.60 is: 119,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,952.80 : 190,429.20 = 79,713.60 : x
  2. Step 2: Convert to fraction form
    126,952.80/190,429.20 = 79,713.60/x
  3. Step 3: Cross multiply
    126,952.80x = 190,429.20 × 79,713.60
  4. Step 4: Simplify right side
    126,952.80x = 15,179,797,077.12
  5. Step 5: Solve for x
    x = 15,179,797,077.12/126,952.80
  6. Step 6: Final answer
    x = 119,570.40

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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.