Home / 126,369.45-189,550.53-51,471.09

Finding the Fourth Proportional to 126,369.45, 189,550.53 and 51,471.09

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Solution

The fourth proportional to 126,369.45, 189,550.53 and 51,471.09 is: 77,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,369.45 : 189,550.53 = 51,471.09 : x
  2. Step 2: Convert to fraction form
    126,369.45/189,550.53 = 51,471.09/x
  3. Step 3: Cross multiply
    126,369.45x = 189,550.53 × 51,471.09
  4. Step 4: Simplify right side
    126,369.45x = 9,756,372,389.18
  5. Step 5: Solve for x
    x = 9,756,372,389.18/126,369.45
  6. Step 6: Final answer
    x = 77,205.15

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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.