Home / 154,788.60-231,884.82-131,356.92

Finding the Fourth Proportional to 154,788.60, 231,884.82 and 131,356.92

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Solution

The fourth proportional to 154,788.60, 231,884.82 and 131,356.92 is: 196,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,788.60 : 231,884.82 = 131,356.92 : x
  2. Step 2: Convert to fraction form
    154,788.60/231,884.82 = 131,356.92/x
  3. Step 3: Cross multiply
    154,788.60x = 231,884.82 × 131,356.92
  4. Step 4: Simplify right side
    154,788.60x = 30,459,675,749.95
  5. Step 5: Solve for x
    x = 30,459,675,749.95/154,788.60
  6. Step 6: Final answer
    x = 196,782.42

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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.