Home / 126,240.75-189,359.60-73,012.82

Finding the Fourth Proportional to 126,240.75, 189,359.60 and 73,012.82

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Solution

The fourth proportional to 126,240.75, 189,359.60 and 73,012.82 is: 109,518.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,240.75 : 189,359.60 = 73,012.82 : x
  2. Step 2: Convert to fraction form
    126,240.75/189,359.60 = 73,012.82/x
  3. Step 3: Cross multiply
    126,240.75x = 189,359.60 × 73,012.82
  4. Step 4: Simplify right side
    126,240.75x = 13,825,677,078.21
  5. Step 5: Solve for x
    x = 13,825,677,078.21/126,240.75
  6. Step 6: Final answer
    x = 109,518.34

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1.5x scale

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.