Home / 126,093.22-189,012.24-81,748.15

Finding the Fourth Proportional to 126,093.22, 189,012.24 and 81,748.15

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Solution

The fourth proportional to 126,093.22, 189,012.24 and 81,748.15 is: 122,539.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,093.22 : 189,012.24 = 81,748.15 : x
  2. Step 2: Convert to fraction form
    126,093.22/189,012.24 = 81,748.15/x
  3. Step 3: Cross multiply
    126,093.22x = 189,012.24 × 81,748.15
  4. Step 4: Simplify right side
    126,093.22x = 15,451,400,947.36
  5. Step 5: Solve for x
    x = 15,451,400,947.36/126,093.22
  6. Step 6: Final answer
    x = 122,539.51

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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.