Home / 80,115.34-120,218.15-55,175.33

Finding the Fourth Proportional to 80,115.34, 120,218.15 and 55,175.33

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Solution

The fourth proportional to 80,115.34, 120,218.15 and 55,175.33 is: 82,794.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,115.34 : 120,218.15 = 55,175.33 : x
  2. Step 2: Convert to fraction form
    80,115.34/120,218.15 = 55,175.33/x
  3. Step 3: Cross multiply
    80,115.34x = 120,218.15 × 55,175.33
  4. Step 4: Simplify right side
    80,115.34x = 6,633,076,098.24
  5. Step 5: Solve for x
    x = 6,633,076,098.24/80,115.34
  6. Step 6: Final answer
    x = 82,794.08

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1.5x scale

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.