Home / 120,375.41-180,464.59-45,453.04

Finding the Fourth Proportional to 120,375.41, 180,464.59 and 45,453.04

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Solution

The fourth proportional to 120,375.41, 180,464.59 and 45,453.04 is: 68,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,375.41 : 180,464.59 = 45,453.04 : x
  2. Step 2: Convert to fraction form
    120,375.41/180,464.59 = 45,453.04/x
  3. Step 3: Cross multiply
    120,375.41x = 180,464.59 × 45,453.04
  4. Step 4: Simplify right side
    120,375.41x = 8,202,664,341.49
  5. Step 5: Solve for x
    x = 8,202,664,341.49/120,375.41
  6. Step 6: Final answer
    x = 68,142.36

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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.