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Finding the Fourth Proportional to 193,810.72, 290,759.95 and 67,456.92

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Solution

The fourth proportional to 193,810.72, 290,759.95 and 67,456.92 is: 101,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,810.72 : 290,759.95 = 67,456.92 : x
  2. Step 2: Convert to fraction form
    193,810.72/290,759.95 = 67,456.92/x
  3. Step 3: Cross multiply
    193,810.72x = 290,759.95 × 67,456.92
  4. Step 4: Simplify right side
    193,810.72x = 19,613,770,686.35
  5. Step 5: Solve for x
    x = 19,613,770,686.35/193,810.72
  6. Step 6: Final answer
    x = 101,200.65

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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.