Home / 120,183.60-165,851.50-66,467.38

Finding the Fourth Proportional to 120,183.60, 165,851.50 and 66,467.38

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Solution

The fourth proportional to 120,183.60, 165,851.50 and 66,467.38 is: 91,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,183.60 : 165,851.50 = 66,467.38 : x
  2. Step 2: Convert to fraction form
    120,183.60/165,851.50 = 66,467.38/x
  3. Step 3: Cross multiply
    120,183.60x = 165,851.50 × 66,467.38
  4. Step 4: Simplify right side
    120,183.60x = 11,023,714,674.07
  5. Step 5: Solve for x
    x = 11,023,714,674.07/120,183.60
  6. Step 6: Final answer
    x = 91,723.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.