Home / 131,806.72-197,708.55-52,919.56

Finding the Fourth Proportional to 131,806.72, 197,708.55 and 52,919.56

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Solution

The fourth proportional to 131,806.72, 197,708.55 and 52,919.56 is: 79,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,806.72 : 197,708.55 = 52,919.56 : x
  2. Step 2: Convert to fraction form
    131,806.72/197,708.55 = 52,919.56/x
  3. Step 3: Cross multiply
    131,806.72x = 197,708.55 × 52,919.56
  4. Step 4: Simplify right side
    131,806.72x = 10,462,649,474.24
  5. Step 5: Solve for x
    x = 10,462,649,474.24/131,806.72
  6. Step 6: Final answer
    x = 79,378.73

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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.