Home / 131,975.76-197,708.40-82,075.80

Finding the Fourth Proportional to 131,975.76, 197,708.40 and 82,075.80

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Solution

The fourth proportional to 131,975.76, 197,708.40 and 82,075.80 is: 122,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,975.76 : 197,708.40 = 82,075.80 : x
  2. Step 2: Convert to fraction form
    131,975.76/197,708.40 = 82,075.80/x
  3. Step 3: Cross multiply
    131,975.76x = 197,708.40 × 82,075.80
  4. Step 4: Simplify right side
    131,975.76x = 16,227,075,096.72
  5. Step 5: Solve for x
    x = 16,227,075,096.72/131,975.76
  6. Step 6: Final answer
    x = 122,954.97

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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.