Home / 131,469.40-197,204.10-109,307.80

Finding the Fourth Proportional to 131,469.40, 197,204.10 and 109,307.80

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Solution

The fourth proportional to 131,469.40, 197,204.10 and 109,307.80 is: 163,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.40 : 197,204.10 = 109,307.80 : x
  2. Step 2: Convert to fraction form
    131,469.40/197,204.10 = 109,307.80/x
  3. Step 3: Cross multiply
    131,469.40x = 197,204.10 × 109,307.80
  4. Step 4: Simplify right side
    131,469.40x = 21,555,946,321.98
  5. Step 5: Solve for x
    x = 21,555,946,321.98/131,469.40
  6. Step 6: Final answer
    x = 163,961.70

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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.