Home / 120,410.37-180,615.99-40,446.05

Finding the Fourth Proportional to 120,410.37, 180,615.99 and 40,446.05

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Solution

The fourth proportional to 120,410.37, 180,615.99 and 40,446.05 is: 60,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,410.37 : 180,615.99 = 40,446.05 : x
  2. Step 2: Convert to fraction form
    120,410.37/180,615.99 = 40,446.05/x
  3. Step 3: Cross multiply
    120,410.37x = 180,615.99 × 40,446.05
  4. Step 4: Simplify right side
    120,410.37x = 7,305,203,800.37
  5. Step 5: Solve for x
    x = 7,305,203,800.37/120,410.37
  6. Step 6: Final answer
    x = 60,669.22

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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.