Home / 126,331.20-189,496.80-73,713.60

Finding the Fourth Proportional to 126,331.20, 189,496.80 and 73,713.60

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Solution

The fourth proportional to 126,331.20, 189,496.80 and 73,713.60 is: 110,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,331.20 : 189,496.80 = 73,713.60 : x
  2. Step 2: Convert to fraction form
    126,331.20/189,496.80 = 73,713.60/x
  3. Step 3: Cross multiply
    126,331.20x = 189,496.80 × 73,713.60
  4. Step 4: Simplify right side
    126,331.20x = 13,968,491,316.48
  5. Step 5: Solve for x
    x = 13,968,491,316.48/126,331.20
  6. Step 6: Final answer
    x = 110,570.40

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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.