Home / 193,090.30-289,589.31-66,735.02

Finding the Fourth Proportional to 193,090.30, 289,589.31 and 66,735.02

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Solution

The fourth proportional to 193,090.30, 289,589.31 and 66,735.02 is: 100,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,090.30 : 289,589.31 = 66,735.02 : x
  2. Step 2: Convert to fraction form
    193,090.30/289,589.31 = 66,735.02/x
  3. Step 3: Cross multiply
    193,090.30x = 289,589.31 × 66,735.02
  4. Step 4: Simplify right side
    193,090.30x = 19,325,749,118.61
  5. Step 5: Solve for x
    x = 19,325,749,118.61/193,090.30
  6. Step 6: Final answer
    x = 100,086.59

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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.