Home / 193,408.12-290,113.46-53,181.56

Finding the Fourth Proportional to 193,408.12, 290,113.46 and 53,181.56

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Solution

The fourth proportional to 193,408.12, 290,113.46 and 53,181.56 is: 79,772.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,408.12 : 290,113.46 = 53,181.56 : x
  2. Step 2: Convert to fraction form
    193,408.12/290,113.46 = 53,181.56/x
  3. Step 3: Cross multiply
    193,408.12x = 290,113.46 × 53,181.56
  4. Step 4: Simplify right side
    193,408.12x = 15,428,686,379.80
  5. Step 5: Solve for x
    x = 15,428,686,379.80/193,408.12
  6. Step 6: Final answer
    x = 79,772.69

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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.