Home / 193,731.75-290,644.20-67,353.53

Finding the Fourth Proportional to 193,731.75, 290,644.20 and 67,353.53

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Solution

The fourth proportional to 193,731.75, 290,644.20 and 67,353.53 is: 101,046.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,731.75 : 290,644.20 = 67,353.53 : x
  2. Step 2: Convert to fraction form
    193,731.75/290,644.20 = 67,353.53/x
  3. Step 3: Cross multiply
    193,731.75x = 290,644.20 × 67,353.53
  4. Step 4: Simplify right side
    193,731.75x = 19,575,911,390.81
  5. Step 5: Solve for x
    x = 19,575,911,390.81/193,731.75
  6. Step 6: Final answer
    x = 101,046.48

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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.