Home / 80,106.15-120,162.06-27,515.28

Finding the Fourth Proportional to 80,106.15, 120,162.06 and 27,515.28

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Solution

The fourth proportional to 80,106.15, 120,162.06 and 27,515.28 is: 41,273.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,106.15 : 120,162.06 = 27,515.28 : x
  2. Step 2: Convert to fraction form
    80,106.15/120,162.06 = 27,515.28/x
  3. Step 3: Cross multiply
    80,106.15x = 120,162.06 × 27,515.28
  4. Step 4: Simplify right side
    80,106.15x = 3,306,292,726.28
  5. Step 5: Solve for x
    x = 3,306,292,726.28/80,106.15
  6. Step 6: Final answer
    x = 41,273.89

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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.