Home / 120,902.45-166,849.43-67,189.73

Finding the Fourth Proportional to 120,902.45, 166,849.43 and 67,189.73

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Solution

The fourth proportional to 120,902.45, 166,849.43 and 67,189.73 is: 92,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,902.45 : 166,849.43 = 67,189.73 : x
  2. Step 2: Convert to fraction form
    120,902.45/166,849.43 = 67,189.73/x
  3. Step 3: Cross multiply
    120,902.45x = 166,849.43 × 67,189.73
  4. Step 4: Simplify right side
    120,902.45x = 11,210,566,982.16
  5. Step 5: Solve for x
    x = 11,210,566,982.16/120,902.45
  6. Step 6: Final answer
    x = 92,724.07

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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.