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Finding the Fourth Proportional to 131,469.60, 196,977.60 and 61,204.80

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Solution

The fourth proportional to 131,469.60, 196,977.60 and 61,204.80 is: 91,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.60 : 196,977.60 = 61,204.80 : x
  2. Step 2: Convert to fraction form
    131,469.60/196,977.60 = 61,204.80/x
  3. Step 3: Cross multiply
    131,469.60x = 196,977.60 × 61,204.80
  4. Step 4: Simplify right side
    131,469.60x = 12,055,974,612.48
  5. Step 5: Solve for x
    x = 12,055,974,612.48/131,469.60
  6. Step 6: Final answer
    x = 91,701.61

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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.