Home / 120,819.42-166,743.90-73,099.08

Finding the Fourth Proportional to 120,819.42, 166,743.90 and 73,099.08

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Solution

The fourth proportional to 120,819.42, 166,743.90 and 73,099.08 is: 100,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,819.42 : 166,743.90 = 73,099.08 : x
  2. Step 2: Convert to fraction form
    120,819.42/166,743.90 = 73,099.08/x
  3. Step 3: Cross multiply
    120,819.42x = 166,743.90 × 73,099.08
  4. Step 4: Simplify right side
    120,819.42x = 12,188,825,685.61
  5. Step 5: Solve for x
    x = 12,188,825,685.61/120,819.42
  6. Step 6: Final answer
    x = 100,884.66

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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.