Home / 120,635.22-180,891-63,739.68

Finding the Fourth Proportional to 120,635.22, 180,891 and 63,739.68

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Solution

The fourth proportional to 120,635.22, 180,891 and 63,739.68 is: 95,576.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,635.22 : 180,891 = 63,739.68 : x
  2. Step 2: Convert to fraction form
    120,635.22/180,891 = 63,739.68/x
  3. Step 3: Cross multiply
    120,635.22x = 180,891 × 63,739.68
  4. Step 4: Simplify right side
    120,635.22x = 11,529,934,454.88
  5. Step 5: Solve for x
    x = 11,529,934,454.88/120,635.22
  6. Step 6: Final answer
    x = 95,576.85

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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.