Home / 126,441.44-189,689.49-67,268.51

Finding the Fourth Proportional to 126,441.44, 189,689.49 and 67,268.51

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Solution

The fourth proportional to 126,441.44, 189,689.49 and 67,268.51 is: 100,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,441.44 : 189,689.49 = 67,268.51 : x
  2. Step 2: Convert to fraction form
    126,441.44/189,689.49 = 67,268.51/x
  3. Step 3: Cross multiply
    126,441.44x = 189,689.49 × 67,268.51
  4. Step 4: Simplify right side
    126,441.44x = 12,760,128,406.51
  5. Step 5: Solve for x
    x = 12,760,128,406.51/126,441.44
  6. Step 6: Final answer
    x = 100,917.30

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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.