Home / 126,040.78-173,934.02-68,680.60

Finding the Fourth Proportional to 126,040.78, 173,934.02 and 68,680.60

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Solution

The fourth proportional to 126,040.78, 173,934.02 and 68,680.60 is: 94,778.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,040.78 : 173,934.02 = 68,680.60 : x
  2. Step 2: Convert to fraction form
    126,040.78/173,934.02 = 68,680.60/x
  3. Step 3: Cross multiply
    126,040.78x = 173,934.02 × 68,680.60
  4. Step 4: Simplify right side
    126,040.78x = 11,945,892,590.88
  5. Step 5: Solve for x
    x = 11,945,892,590.88/126,040.78
  6. Step 6: Final answer
    x = 94,778.00

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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.