Home / 126,319.71-189,315.03-51,352.29

Finding the Fourth Proportional to 126,319.71, 189,315.03 and 51,352.29

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Solution

The fourth proportional to 126,319.71, 189,315.03 and 51,352.29 is: 76,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,319.71 : 189,315.03 = 51,352.29 : x
  2. Step 2: Convert to fraction form
    126,319.71/189,315.03 = 51,352.29/x
  3. Step 3: Cross multiply
    126,319.71x = 189,315.03 × 51,352.29
  4. Step 4: Simplify right side
    126,319.71x = 9,721,760,321.92
  5. Step 5: Solve for x
    x = 9,721,760,321.92/126,319.71
  6. Step 6: Final answer
    x = 76,961.55

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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.