Home / 196,296.72-270,897.78-111,421.68

Finding the Fourth Proportional to 196,296.72, 270,897.78 and 111,421.68

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Solution

The fourth proportional to 196,296.72, 270,897.78 and 111,421.68 is: 153,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,296.72 : 270,897.78 = 111,421.68 : x
  2. Step 2: Convert to fraction form
    196,296.72/270,897.78 = 111,421.68/x
  3. Step 3: Cross multiply
    196,296.72x = 270,897.78 × 111,421.68
  4. Step 4: Simplify right side
    196,296.72x = 30,183,885,755.87
  5. Step 5: Solve for x
    x = 30,183,885,755.87/196,296.72
  6. Step 6: Final answer
    x = 153,766.63

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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.