Home / 140,745.74-194,180.86-80,272.89

Finding the Fourth Proportional to 140,745.74, 194,180.86 and 80,272.89

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Solution

The fourth proportional to 140,745.74, 194,180.86 and 80,272.89 is: 110,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,745.74 : 194,180.86 = 80,272.89 : x
  2. Step 2: Convert to fraction form
    140,745.74/194,180.86 = 80,272.89/x
  3. Step 3: Cross multiply
    140,745.74x = 194,180.86 × 80,272.89
  4. Step 4: Simplify right side
    140,745.74x = 15,587,458,915.23
  5. Step 5: Solve for x
    x = 15,587,458,915.23/140,745.74
  6. Step 6: Final answer
    x = 110,749.07

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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.