Home / 120,168.06-180,224.10-45,295.68

Finding the Fourth Proportional to 120,168.06, 180,224.10 and 45,295.68

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Solution

The fourth proportional to 120,168.06, 180,224.10 and 45,295.68 is: 67,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,168.06 : 180,224.10 = 45,295.68 : x
  2. Step 2: Convert to fraction form
    120,168.06/180,224.10 = 45,295.68/x
  3. Step 3: Cross multiply
    120,168.06x = 180,224.10 × 45,295.68
  4. Step 4: Simplify right side
    120,168.06x = 8,163,373,161.89
  5. Step 5: Solve for x
    x = 8,163,373,161.89/120,168.06
  6. Step 6: Final answer
    x = 67,932.97

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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.