Home / 131,788.42-197,680.87-31,949.51

Finding the Fourth Proportional to 131,788.42, 197,680.87 and 31,949.51

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Solution

The fourth proportional to 131,788.42, 197,680.87 and 31,949.51 is: 47,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.42 : 197,680.87 = 31,949.51 : x
  2. Step 2: Convert to fraction form
    131,788.42/197,680.87 = 31,949.51/x
  3. Step 3: Cross multiply
    131,788.42x = 197,680.87 × 31,949.51
  4. Step 4: Simplify right side
    131,788.42x = 6,315,805,984.41
  5. Step 5: Solve for x
    x = 6,315,805,984.41/131,788.42
  6. Step 6: Final answer
    x = 47,923.83

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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.