Home / 193,086.72-289,559.04-66,694.80

Finding the Fourth Proportional to 193,086.72, 289,559.04 and 66,694.80

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Solution

The fourth proportional to 193,086.72, 289,559.04 and 66,694.80 is: 100,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,086.72 : 289,559.04 = 66,694.80 : x
  2. Step 2: Convert to fraction form
    193,086.72/289,559.04 = 66,694.80/x
  3. Step 3: Cross multiply
    193,086.72x = 289,559.04 × 66,694.80
  4. Step 4: Simplify right side
    193,086.72x = 19,312,082,260.99
  5. Step 5: Solve for x
    x = 19,312,082,260.99/193,086.72
  6. Step 6: Final answer
    x = 100,017.66

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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.