Home / 92,686.44-139,029.57-80,169.25

Finding the Fourth Proportional to 92,686.44, 139,029.57 and 80,169.25

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Solution

The fourth proportional to 92,686.44, 139,029.57 and 80,169.25 is: 120,253.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,686.44 : 139,029.57 = 80,169.25 : x
  2. Step 2: Convert to fraction form
    92,686.44/139,029.57 = 80,169.25/x
  3. Step 3: Cross multiply
    92,686.44x = 139,029.57 × 80,169.25
  4. Step 4: Simplify right side
    92,686.44x = 11,145,895,953.88
  5. Step 5: Solve for x
    x = 11,145,895,953.88/92,686.44
  6. Step 6: Final answer
    x = 120,253.79

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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.