Home / 120,621.85-180,933.24-50,451.94

Finding the Fourth Proportional to 120,621.85, 180,933.24 and 50,451.94

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Solution

The fourth proportional to 120,621.85, 180,933.24 and 50,451.94 is: 75,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,621.85 : 180,933.24 = 50,451.94 : x
  2. Step 2: Convert to fraction form
    120,621.85/180,933.24 = 50,451.94/x
  3. Step 3: Cross multiply
    120,621.85x = 180,933.24 × 50,451.94
  4. Step 4: Simplify right side
    120,621.85x = 9,128,432,968.49
  5. Step 5: Solve for x
    x = 9,128,432,968.49/120,621.85
  6. Step 6: Final answer
    x = 75,678.10

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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.