Home / 120,890.68-166,829.22-67,180.69

Finding the Fourth Proportional to 120,890.68, 166,829.22 and 67,180.69

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Solution

The fourth proportional to 120,890.68, 166,829.22 and 67,180.69 is: 92,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,890.68 : 166,829.22 = 67,180.69 : x
  2. Step 2: Convert to fraction form
    120,890.68/166,829.22 = 67,180.69/x
  3. Step 3: Cross multiply
    120,890.68x = 166,829.22 × 67,180.69
  4. Step 4: Simplify right side
    120,890.68x = 11,207,702,320.30
  5. Step 5: Solve for x
    x = 11,207,702,320.30/120,890.68
  6. Step 6: Final answer
    x = 92,709.40

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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.