Home / 131,839.20-197,758.80-52,912.80

Finding the Fourth Proportional to 131,839.20, 197,758.80 and 52,912.80

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Solution

The fourth proportional to 131,839.20, 197,758.80 and 52,912.80 is: 79,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,839.20 : 197,758.80 = 52,912.80 : x
  2. Step 2: Convert to fraction form
    131,839.20/197,758.80 = 52,912.80/x
  3. Step 3: Cross multiply
    131,839.20x = 197,758.80 × 52,912.80
  4. Step 4: Simplify right side
    131,839.20x = 10,463,971,832.64
  5. Step 5: Solve for x
    x = 10,463,971,832.64/131,839.20
  6. Step 6: Final answer
    x = 79,369.20

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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.