Home / 126,137.24-189,201.76-51,235.22

Finding the Fourth Proportional to 126,137.24, 189,201.76 and 51,235.22

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Solution

The fourth proportional to 126,137.24, 189,201.76 and 51,235.22 is: 76,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,137.24 : 189,201.76 = 51,235.22 : x
  2. Step 2: Convert to fraction form
    126,137.24/189,201.76 = 51,235.22/x
  3. Step 3: Cross multiply
    126,137.24x = 189,201.76 × 51,235.22
  4. Step 4: Simplify right side
    126,137.24x = 9,693,793,797.99
  5. Step 5: Solve for x
    x = 9,693,793,797.99/126,137.24
  6. Step 6: Final answer
    x = 76,851.16

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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.