Home / 80,142.75-120,215.75-24,738.75

Finding the Fourth Proportional to 80,142.75, 120,215.75 and 24,738.75

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Solution

The fourth proportional to 80,142.75, 120,215.75 and 24,738.75 is: 37,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142.75 : 120,215.75 = 24,738.75 : x
  2. Step 2: Convert to fraction form
    80,142.75/120,215.75 = 24,738.75/x
  3. Step 3: Cross multiply
    80,142.75x = 120,215.75 × 24,738.75
  4. Step 4: Simplify right side
    80,142.75x = 2,973,987,261.62
  5. Step 5: Solve for x
    x = 2,973,987,261.62/80,142.75
  6. Step 6: Final answer
    x = 37,108.63

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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.