Home / 193,028.70-289,528.65-80,679.90

Finding the Fourth Proportional to 193,028.70, 289,528.65 and 80,679.90

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Solution

The fourth proportional to 193,028.70, 289,528.65 and 80,679.90 is: 121,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,028.70 : 289,528.65 = 80,679.90 : x
  2. Step 2: Convert to fraction form
    193,028.70/289,528.65 = 80,679.90/x
  3. Step 3: Cross multiply
    193,028.70x = 289,528.65 × 80,679.90
  4. Step 4: Simplify right side
    193,028.70x = 23,359,142,529.14
  5. Step 5: Solve for x
    x = 23,359,142,529.14/193,028.70
  6. Step 6: Final answer
    x = 121,013.83

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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.