Home / 193,371.30-289,987.41-66,977.49

Finding the Fourth Proportional to 193,371.30, 289,987.41 and 66,977.49

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Solution

The fourth proportional to 193,371.30, 289,987.41 and 66,977.49 is: 100,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,371.30 : 289,987.41 = 66,977.49 : x
  2. Step 2: Convert to fraction form
    193,371.30/289,987.41 = 66,977.49/x
  3. Step 3: Cross multiply
    193,371.30x = 289,987.41 × 66,977.49
  4. Step 4: Simplify right side
    193,371.30x = 19,422,628,853.40
  5. Step 5: Solve for x
    x = 19,422,628,853.40/193,371.30
  6. Step 6: Final answer
    x = 100,442.15

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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.