Home / 126,394.84-189,610.62-51,519.52

Finding the Fourth Proportional to 126,394.84, 189,610.62 and 51,519.52

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Solution

The fourth proportional to 126,394.84, 189,610.62 and 51,519.52 is: 77,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,394.84 : 189,610.62 = 51,519.52 : x
  2. Step 2: Convert to fraction form
    126,394.84/189,610.62 = 51,519.52/x
  3. Step 3: Cross multiply
    126,394.84x = 189,610.62 × 51,519.52
  4. Step 4: Simplify right side
    126,394.84x = 9,768,648,129.30
  5. Step 5: Solve for x
    x = 9,768,648,129.30/126,394.84
  6. Step 6: Final answer
    x = 77,286.76

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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.