Home / 126,184.20-189,276.30-103,633.80

Finding the Fourth Proportional to 126,184.20, 189,276.30 and 103,633.80

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Solution

The fourth proportional to 126,184.20, 189,276.30 and 103,633.80 is: 155,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,184.20 : 189,276.30 = 103,633.80 : x
  2. Step 2: Convert to fraction form
    126,184.20/189,276.30 = 103,633.80/x
  3. Step 3: Cross multiply
    126,184.20x = 189,276.30 × 103,633.80
  4. Step 4: Simplify right side
    126,184.20x = 19,615,422,218.94
  5. Step 5: Solve for x
    x = 19,615,422,218.94/126,184.20
  6. Step 6: Final answer
    x = 155,450.70

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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.