Home / 120,172.41-180,245.64-40,201.32

Finding the Fourth Proportional to 120,172.41, 180,245.64 and 40,201.32

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Solution

The fourth proportional to 120,172.41, 180,245.64 and 40,201.32 is: 60,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,172.41 : 180,245.64 = 40,201.32 : x
  2. Step 2: Convert to fraction form
    120,172.41/180,245.64 = 40,201.32/x
  3. Step 3: Cross multiply
    120,172.41x = 180,245.64 × 40,201.32
  4. Step 4: Simplify right side
    120,172.41x = 7,246,112,652.24
  5. Step 5: Solve for x
    x = 7,246,112,652.24/120,172.41
  6. Step 6: Final answer
    x = 60,297.64

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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.