Home / 120,372.66-180,404.46-45,403.52

Finding the Fourth Proportional to 120,372.66, 180,404.46 and 45,403.52

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Solution

The fourth proportional to 120,372.66, 180,404.46 and 45,403.52 is: 68,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372.66 : 180,404.46 = 45,403.52 : x
  2. Step 2: Convert to fraction form
    120,372.66/180,404.46 = 45,403.52/x
  3. Step 3: Cross multiply
    120,372.66x = 180,404.46 × 45,403.52
  4. Step 4: Simplify right side
    120,372.66x = 8,190,997,507.70
  5. Step 5: Solve for x
    x = 8,190,997,507.70/120,372.66
  6. Step 6: Final answer
    x = 68,046.99

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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.