Home / 143,270.07-197,729.99-82,855.58

Finding the Fourth Proportional to 143,270.07, 197,729.99 and 82,855.58

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Solution

The fourth proportional to 143,270.07, 197,729.99 and 82,855.58 is: 114,350.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,270.07 : 197,729.99 = 82,855.58 : x
  2. Step 2: Convert to fraction form
    143,270.07/197,729.99 = 82,855.58/x
  3. Step 3: Cross multiply
    143,270.07x = 197,729.99 × 82,855.58
  4. Step 4: Simplify right side
    143,270.07x = 16,383,031,601.92
  5. Step 5: Solve for x
    x = 16,383,031,601.92/143,270.07
  6. Step 6: Final answer
    x = 114,350.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.