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Finding the Fourth Proportional to 131,794.40, 197,821.20 and 65,309.60

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Solution

The fourth proportional to 131,794.40, 197,821.20 and 65,309.60 is: 98,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,794.40 : 197,821.20 = 65,309.60 : x
  2. Step 2: Convert to fraction form
    131,794.40/197,821.20 = 65,309.60/x
  3. Step 3: Cross multiply
    131,794.40x = 197,821.20 × 65,309.60
  4. Step 4: Simplify right side
    131,794.40x = 12,919,623,443.52
  5. Step 5: Solve for x
    x = 12,919,623,443.52/131,794.40
  6. Step 6: Final answer
    x = 98,028.62

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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.