Home / 140,919.90-194,465.25-77,255.52

Finding the Fourth Proportional to 140,919.90, 194,465.25 and 77,255.52

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Solution

The fourth proportional to 140,919.90, 194,465.25 and 77,255.52 is: 106,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919.90 : 194,465.25 = 77,255.52 : x
  2. Step 2: Convert to fraction form
    140,919.90/194,465.25 = 77,255.52/x
  3. Step 3: Cross multiply
    140,919.90x = 194,465.25 × 77,255.52
  4. Step 4: Simplify right side
    140,919.90x = 15,023,514,010.68
  5. Step 5: Solve for x
    x = 15,023,514,010.68/140,919.90
  6. Step 6: Final answer
    x = 106,610.31

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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.