Home / 126,319.96-189,315.41-51,352.54

Finding the Fourth Proportional to 126,319.96, 189,315.41 and 51,352.54

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Solution

The fourth proportional to 126,319.96, 189,315.41 and 51,352.54 is: 76,961.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,319.96 : 189,315.41 = 51,352.54 : x
  2. Step 2: Convert to fraction form
    126,319.96/189,315.41 = 51,352.54/x
  3. Step 3: Cross multiply
    126,319.96x = 189,315.41 × 51,352.54
  4. Step 4: Simplify right side
    126,319.96x = 9,721,826,907.88
  5. Step 5: Solve for x
    x = 9,721,826,907.88/126,319.96
  6. Step 6: Final answer
    x = 76,961.92

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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.