Home / 80,119.33-120,251.22-42,710.56

Finding the Fourth Proportional to 80,119.33, 120,251.22 and 42,710.56

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Solution

The fourth proportional to 80,119.33, 120,251.22 and 42,710.56 is: 64,104.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,119.33 : 120,251.22 = 42,710.56 : x
  2. Step 2: Convert to fraction form
    80,119.33/120,251.22 = 42,710.56/x
  3. Step 3: Cross multiply
    80,119.33x = 120,251.22 × 42,710.56
  4. Step 4: Simplify right side
    80,119.33x = 5,135,996,946.88
  5. Step 5: Solve for x
    x = 5,135,996,946.88/80,119.33
  6. Step 6: Final answer
    x = 64,104.34

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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.