Home / 154,139.76-230,845.14-131,394.96

Finding the Fourth Proportional to 154,139.76, 230,845.14 and 131,394.96

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Solution

The fourth proportional to 154,139.76, 230,845.14 and 131,394.96 is: 196,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,139.76 : 230,845.14 = 131,394.96 : x
  2. Step 2: Convert to fraction form
    154,139.76/230,845.14 = 131,394.96/x
  3. Step 3: Cross multiply
    154,139.76x = 230,845.14 × 131,394.96
  4. Step 4: Simplify right side
    154,139.76x = 30,331,887,936.49
  5. Step 5: Solve for x
    x = 30,331,887,936.49/154,139.76
  6. Step 6: Final answer
    x = 196,781.73

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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.