Home / 82,197.72-123,172.74-63,449.28

Finding the Fourth Proportional to 82,197.72, 123,172.74 and 63,449.28

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Solution

The fourth proportional to 82,197.72, 123,172.74 and 63,449.28 is: 95,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,197.72 : 123,172.74 = 63,449.28 : x
  2. Step 2: Convert to fraction form
    82,197.72/123,172.74 = 63,449.28/x
  3. Step 3: Cross multiply
    82,197.72x = 123,172.74 × 63,449.28
  4. Step 4: Simplify right side
    82,197.72x = 7,815,221,668.63
  5. Step 5: Solve for x
    x = 7,815,221,668.63/82,197.72
  6. Step 6: Final answer
    x = 95,078.33

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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.