Home / 120,519.62-180,753.48-49,372.50

Finding the Fourth Proportional to 120,519.62, 180,753.48 and 49,372.50

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Solution

The fourth proportional to 120,519.62, 180,753.48 and 49,372.50 is: 74,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,519.62 : 180,753.48 = 49,372.50 : x
  2. Step 2: Convert to fraction form
    120,519.62/180,753.48 = 49,372.50/x
  3. Step 3: Cross multiply
    120,519.62x = 180,753.48 × 49,372.50
  4. Step 4: Simplify right side
    120,519.62x = 8,924,250,482.88
  5. Step 5: Solve for x
    x = 8,924,250,482.88/120,519.62
  6. Step 6: Final answer
    x = 74,048.11

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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.