Home / 131,138.88-196,708.14-52,308.46

Finding the Fourth Proportional to 131,138.88, 196,708.14 and 52,308.46

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Solution

The fourth proportional to 131,138.88, 196,708.14 and 52,308.46 is: 78,462.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138.88 : 196,708.14 = 52,308.46 : x
  2. Step 2: Convert to fraction form
    131,138.88/196,708.14 = 52,308.46/x
  3. Step 3: Cross multiply
    131,138.88x = 196,708.14 × 52,308.46
  4. Step 4: Simplify right side
    131,138.88x = 10,289,499,872.86
  5. Step 5: Solve for x
    x = 10,289,499,872.86/131,138.88
  6. Step 6: Final answer
    x = 78,462.62

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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.