Home / 126,388.22-189,581.79-51,491.66

Finding the Fourth Proportional to 126,388.22, 189,581.79 and 51,491.66

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Solution

The fourth proportional to 126,388.22, 189,581.79 and 51,491.66 is: 77,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,388.22 : 189,581.79 = 51,491.66 : x
  2. Step 2: Convert to fraction form
    126,388.22/189,581.79 = 51,491.66/x
  3. Step 3: Cross multiply
    126,388.22x = 189,581.79 × 51,491.66
  4. Step 4: Simplify right side
    126,388.22x = 9,761,881,072.87
  5. Step 5: Solve for x
    x = 9,761,881,072.87/126,388.22
  6. Step 6: Final answer
    x = 77,237.27

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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.