Home / 126,260.20-189,390.30-73,642.60

Finding the Fourth Proportional to 126,260.20, 189,390.30 and 73,642.60

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Solution

The fourth proportional to 126,260.20, 189,390.30 and 73,642.60 is: 110,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,260.20 : 189,390.30 = 73,642.60 : x
  2. Step 2: Convert to fraction form
    126,260.20/189,390.30 = 73,642.60/x
  3. Step 3: Cross multiply
    126,260.20x = 189,390.30 × 73,642.60
  4. Step 4: Simplify right side
    126,260.20x = 13,947,194,106.78
  5. Step 5: Solve for x
    x = 13,947,194,106.78/126,260.20
  6. Step 6: Final answer
    x = 110,463.90

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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.