Home / 126,166.50-189,249.78-51,327.36

Finding the Fourth Proportional to 126,166.50, 189,249.78 and 51,327.36

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Solution

The fourth proportional to 126,166.50, 189,249.78 and 51,327.36 is: 76,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,166.50 : 189,249.78 = 51,327.36 : x
  2. Step 2: Convert to fraction form
    126,166.50/189,249.78 = 51,327.36/x
  3. Step 3: Cross multiply
    126,166.50x = 189,249.78 × 51,327.36
  4. Step 4: Simplify right side
    126,166.50x = 9,713,691,587.98
  5. Step 5: Solve for x
    x = 9,713,691,587.98/126,166.50
  6. Step 6: Final answer
    x = 76,991.05

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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.