Home / 120,429.89-180,654.19-36,183.48

Finding the Fourth Proportional to 120,429.89, 180,654.19 and 36,183.48

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Solution

The fourth proportional to 120,429.89, 180,654.19 and 36,183.48 is: 54,278.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,429.89 : 180,654.19 = 36,183.48 : x
  2. Step 2: Convert to fraction form
    120,429.89/180,654.19 = 36,183.48/x
  3. Step 3: Cross multiply
    120,429.89x = 180,654.19 × 36,183.48
  4. Step 4: Simplify right side
    120,429.89x = 6,536,697,270.78
  5. Step 5: Solve for x
    x = 6,536,697,270.78/120,429.89
  6. Step 6: Final answer
    x = 54,278.03

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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.