Home / 126,228.60-189,780.30-123,604.20

Finding the Fourth Proportional to 126,228.60, 189,780.30 and 123,604.20

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Solution

The fourth proportional to 126,228.60, 189,780.30 and 123,604.20 is: 185,834.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,228.60 : 189,780.30 = 123,604.20 : x
  2. Step 2: Convert to fraction form
    126,228.60/189,780.30 = 123,604.20/x
  3. Step 3: Cross multiply
    126,228.60x = 189,780.30 × 123,604.20
  4. Step 4: Simplify right side
    126,228.60x = 23,457,642,157.26
  5. Step 5: Solve for x
    x = 23,457,642,157.26/126,228.60
  6. Step 6: Final answer
    x = 185,834.61

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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.