Home / 126,250.80-189,376.20-120,418.80

Finding the Fourth Proportional to 126,250.80, 189,376.20 and 120,418.80

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Solution

The fourth proportional to 126,250.80, 189,376.20 and 120,418.80 is: 180,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,250.80 : 189,376.20 = 120,418.80 : x
  2. Step 2: Convert to fraction form
    126,250.80/189,376.20 = 120,418.80/x
  3. Step 3: Cross multiply
    126,250.80x = 189,376.20 × 120,418.80
  4. Step 4: Simplify right side
    126,250.80x = 22,804,454,752.56
  5. Step 5: Solve for x
    x = 22,804,454,752.56/126,250.80
  6. Step 6: Final answer
    x = 180,628.20

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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.