Home / 120,375.53-180,464.78-45,453.17

Finding the Fourth Proportional to 120,375.53, 180,464.78 and 45,453.17

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Solution

The fourth proportional to 120,375.53, 180,464.78 and 45,453.17 is: 68,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,375.53 : 180,464.78 = 45,453.17 : x
  2. Step 2: Convert to fraction form
    120,375.53/180,464.78 = 45,453.17/x
  3. Step 3: Cross multiply
    120,375.53x = 180,464.78 × 45,453.17
  4. Step 4: Simplify right side
    120,375.53x = 8,202,695,535.66
  5. Step 5: Solve for x
    x = 8,202,695,535.66/120,375.53
  6. Step 6: Final answer
    x = 68,142.55

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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.