Home / 126,144.50-189,216.75-51,305.36

Finding the Fourth Proportional to 126,144.50, 189,216.75 and 51,305.36

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Solution

The fourth proportional to 126,144.50, 189,216.75 and 51,305.36 is: 76,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,144.50 : 189,216.75 = 51,305.36 : x
  2. Step 2: Convert to fraction form
    126,144.50/189,216.75 = 51,305.36/x
  3. Step 3: Cross multiply
    126,144.50x = 189,216.75 × 51,305.36
  4. Step 4: Simplify right side
    126,144.50x = 9,707,833,476.78
  5. Step 5: Solve for x
    x = 9,707,833,476.78/126,144.50
  6. Step 6: Final answer
    x = 76,958.04

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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.