Home / 126,371.07-189,493.23-42,101.61

Finding the Fourth Proportional to 126,371.07, 189,493.23 and 42,101.61

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Solution

The fourth proportional to 126,371.07, 189,493.23 and 42,101.61 is: 63,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,371.07 : 189,493.23 = 42,101.61 : x
  2. Step 2: Convert to fraction form
    126,371.07/189,493.23 = 42,101.61/x
  3. Step 3: Cross multiply
    126,371.07x = 189,493.23 × 42,101.61
  4. Step 4: Simplify right side
    126,371.07x = 7,977,970,067.10
  5. Step 5: Solve for x
    x = 7,977,970,067.10/126,371.07
  6. Step 6: Final answer
    x = 63,131.30

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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.