Home / 126,310.24-189,531.78-51,485.68

Finding the Fourth Proportional to 126,310.24, 189,531.78 and 51,485.68

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Solution

The fourth proportional to 126,310.24, 189,531.78 and 51,485.68 is: 77,255.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,310.24 : 189,531.78 = 51,485.68 : x
  2. Step 2: Convert to fraction form
    126,310.24/189,531.78 = 51,485.68/x
  3. Step 3: Cross multiply
    126,310.24x = 189,531.78 × 51,485.68
  4. Step 4: Simplify right side
    126,310.24x = 9,758,172,574.91
  5. Step 5: Solve for x
    x = 9,758,172,574.91/126,310.24
  6. Step 6: Final answer
    x = 77,255.59

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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.