Home / 193,021.27-289,570.60-66,666.15

Finding the Fourth Proportional to 193,021.27, 289,570.60 and 66,666.15

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Solution

The fourth proportional to 193,021.27, 289,570.60 and 66,666.15 is: 100,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,021.27 : 289,570.60 = 66,666.15 : x
  2. Step 2: Convert to fraction form
    193,021.27/289,570.60 = 66,666.15/x
  3. Step 3: Cross multiply
    193,021.27x = 289,570.60 × 66,666.15
  4. Step 4: Simplify right side
    193,021.27x = 19,304,557,138.52
  5. Step 5: Solve for x
    x = 19,304,557,138.52/193,021.27
  6. Step 6: Final answer
    x = 100,012.59

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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.