Home / 120,190.30-180,218.89-49,162.81

Finding the Fourth Proportional to 120,190.30, 180,218.89 and 49,162.81

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Solution

The fourth proportional to 120,190.30, 180,218.89 and 49,162.81 is: 73,716.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,190.30 : 180,218.89 = 49,162.81 : x
  2. Step 2: Convert to fraction form
    120,190.30/180,218.89 = 49,162.81/x
  3. Step 3: Cross multiply
    120,190.30x = 180,218.89 × 49,162.81
  4. Step 4: Simplify right side
    120,190.30x = 8,860,067,047.48
  5. Step 5: Solve for x
    x = 8,860,067,047.48/120,190.30
  6. Step 6: Final answer
    x = 73,716.99

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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.