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Finding the Fourth Proportional to 131,366.70, 197,118.90 and 60,310.80

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Solution

The fourth proportional to 131,366.70, 197,118.90 and 60,310.80 is: 90,497.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,366.70 : 197,118.90 = 60,310.80 : x
  2. Step 2: Convert to fraction form
    131,366.70/197,118.90 = 60,310.80/x
  3. Step 3: Cross multiply
    131,366.70x = 197,118.90 × 60,310.80
  4. Step 4: Simplify right side
    131,366.70x = 11,888,398,554.12
  5. Step 5: Solve for x
    x = 11,888,398,554.12/131,366.70
  6. Step 6: Final answer
    x = 90,497.81

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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.