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Finding the Fourth Proportional to 131,076, 196,191.09 and 67,809.02

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Solution

The fourth proportional to 131,076, 196,191.09 and 67,809.02 is: 101,494.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,076 : 196,191.09 = 67,809.02 : x
  2. Step 2: Convert to fraction form
    131,076/196,191.09 = 67,809.02/x
  3. Step 3: Cross multiply
    131,076x = 196,191.09 × 67,809.02
  4. Step 4: Simplify right side
    131,076x = 13,303,524,564.68
  5. Step 5: Solve for x
    x = 13,303,524,564.68/131,076
  6. Step 6: Final answer
    x = 101,494.74

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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.