Home / 80,118.86-120,093.54-30,177.34

Finding the Fourth Proportional to 80,118.86, 120,093.54 and 30,177.34

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Solution

The fourth proportional to 80,118.86, 120,093.54 and 30,177.34 is: 45,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,118.86 : 120,093.54 = 30,177.34 : x
  2. Step 2: Convert to fraction form
    80,118.86/120,093.54 = 30,177.34/x
  3. Step 3: Cross multiply
    80,118.86x = 120,093.54 × 30,177.34
  4. Step 4: Simplify right side
    80,118.86x = 3,624,103,850.51
  5. Step 5: Solve for x
    x = 3,624,103,850.51/80,118.86
  6. Step 6: Final answer
    x = 45,234.09

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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.