Home / 131,519.20-197,170.80-56,696.80

Finding the Fourth Proportional to 131,519.20, 197,170.80 and 56,696.80

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Solution

The fourth proportional to 131,519.20, 197,170.80 and 56,696.80 is: 84,998.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,519.20 : 197,170.80 = 56,696.80 : x
  2. Step 2: Convert to fraction form
    131,519.20/197,170.80 = 56,696.80/x
  3. Step 3: Cross multiply
    131,519.20x = 197,170.80 × 56,696.80
  4. Step 4: Simplify right side
    131,519.20x = 11,178,953,413.44
  5. Step 5: Solve for x
    x = 11,178,953,413.44/131,519.20
  6. Step 6: Final answer
    x = 84,998.64

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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.