Home / 126,561.96-189,864.78-51,722.76

Finding the Fourth Proportional to 126,561.96, 189,864.78 and 51,722.76

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Solution

The fourth proportional to 126,561.96, 189,864.78 and 51,722.76 is: 77,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,561.96 : 189,864.78 = 51,722.76 : x
  2. Step 2: Convert to fraction form
    126,561.96/189,864.78 = 51,722.76/x
  3. Step 3: Cross multiply
    126,561.96x = 189,864.78 × 51,722.76
  4. Step 4: Simplify right side
    126,561.96x = 9,820,330,448.39
  5. Step 5: Solve for x
    x = 9,820,330,448.39/126,561.96
  6. Step 6: Final answer
    x = 77,593.07

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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.