Home / 131,480.20-197,112.30-56,657.80

Finding the Fourth Proportional to 131,480.20, 197,112.30 and 56,657.80

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Solution

The fourth proportional to 131,480.20, 197,112.30 and 56,657.80 is: 84,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,480.20 : 197,112.30 = 56,657.80 : x
  2. Step 2: Convert to fraction form
    131,480.20/197,112.30 = 56,657.80/x
  3. Step 3: Cross multiply
    131,480.20x = 197,112.30 × 56,657.80
  4. Step 4: Simplify right side
    131,480.20x = 11,167,949,270.94
  5. Step 5: Solve for x
    x = 11,167,949,270.94/131,480.20
  6. Step 6: Final answer
    x = 84,940.16

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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.