Home / 80,168.25-120,234.15-30,253.62

Finding the Fourth Proportional to 80,168.25, 120,234.15 and 30,253.62

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Solution

The fourth proportional to 80,168.25, 120,234.15 and 30,253.62 is: 45,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,168.25 : 120,234.15 = 30,253.62 : x
  2. Step 2: Convert to fraction form
    80,168.25/120,234.15 = 30,253.62/x
  3. Step 3: Cross multiply
    80,168.25x = 120,234.15 × 30,253.62
  4. Step 4: Simplify right side
    80,168.25x = 3,637,518,285.12
  5. Step 5: Solve for x
    x = 3,637,518,285.12/80,168.25
  6. Step 6: Final answer
    x = 45,373.55

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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.