Home / 80,115.94-120,165.26-26,801.88

Finding the Fourth Proportional to 80,115.94, 120,165.26 and 26,801.88

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Solution

The fourth proportional to 80,115.94, 120,165.26 and 26,801.88 is: 40,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,115.94 : 120,165.26 = 26,801.88 : x
  2. Step 2: Convert to fraction form
    80,115.94/120,165.26 = 26,801.88/x
  3. Step 3: Cross multiply
    80,115.94x = 120,165.26 × 26,801.88
  4. Step 4: Simplify right side
    80,115.94x = 3,220,654,878.69
  5. Step 5: Solve for x
    x = 3,220,654,878.69/80,115.94
  6. Step 6: Final answer
    x = 40,199.93

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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.