Home / 120,183.03-180,147.43-45,270.77

Finding the Fourth Proportional to 120,183.03, 180,147.43 and 45,270.77

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Solution

The fourth proportional to 120,183.03, 180,147.43 and 45,270.77 is: 67,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,183.03 : 180,147.43 = 45,270.77 : x
  2. Step 2: Convert to fraction form
    120,183.03/180,147.43 = 45,270.77/x
  3. Step 3: Cross multiply
    120,183.03x = 180,147.43 × 45,270.77
  4. Step 4: Simplify right side
    120,183.03x = 8,155,412,869.62
  5. Step 5: Solve for x
    x = 8,155,412,869.62/120,183.03
  6. Step 6: Final answer
    x = 67,858.27

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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.