Home / 131,138.93-196,708.23-52,308.52

Finding the Fourth Proportional to 131,138.93, 196,708.23 and 52,308.52

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Solution

The fourth proportional to 131,138.93, 196,708.23 and 52,308.52 is: 78,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138.93 : 196,708.23 = 52,308.52 : x
  2. Step 2: Convert to fraction form
    131,138.93/196,708.23 = 52,308.52/x
  3. Step 3: Cross multiply
    131,138.93x = 196,708.23 × 52,308.52
  4. Step 4: Simplify right side
    131,138.93x = 10,289,515,891.35
  5. Step 5: Solve for x
    x = 10,289,515,891.35/131,138.93
  6. Step 6: Final answer
    x = 78,462.71

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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.