Home / 193,788.78-267,400.11-107,740.86

Finding the Fourth Proportional to 193,788.78, 267,400.11 and 107,740.86

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Solution

The fourth proportional to 193,788.78, 267,400.11 and 107,740.86 is: 148,666.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,788.78 : 267,400.11 = 107,740.86 : x
  2. Step 2: Convert to fraction form
    193,788.78/267,400.11 = 107,740.86/x
  3. Step 3: Cross multiply
    193,788.78x = 267,400.11 × 107,740.86
  4. Step 4: Simplify right side
    193,788.78x = 28,809,917,815.49
  5. Step 5: Solve for x
    x = 28,809,917,815.49/193,788.78
  6. Step 6: Final answer
    x = 148,666.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.