Home / 126,650.85-174,778.22-72,934.72

Finding the Fourth Proportional to 126,650.85, 174,778.22 and 72,934.72

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Solution

The fourth proportional to 126,650.85, 174,778.22 and 72,934.72 is: 100,649.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,650.85 : 174,778.22 = 72,934.72 : x
  2. Step 2: Convert to fraction form
    126,650.85/174,778.22 = 72,934.72/x
  3. Step 3: Cross multiply
    126,650.85x = 174,778.22 × 72,934.72
  4. Step 4: Simplify right side
    126,650.85x = 12,747,400,537.80
  5. Step 5: Solve for x
    x = 12,747,400,537.80/126,650.85
  6. Step 6: Final answer
    x = 100,649.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.