Home / 107,834.20-161,897.10-68,468.20

Finding the Fourth Proportional to 107,834.20, 161,897.10 and 68,468.20

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Solution

The fourth proportional to 107,834.20, 161,897.10 and 68,468.20 is: 102,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,834.20 : 161,897.10 = 68,468.20 : x
  2. Step 2: Convert to fraction form
    107,834.20/161,897.10 = 68,468.20/x
  3. Step 3: Cross multiply
    107,834.20x = 161,897.10 × 68,468.20
  4. Step 4: Simplify right side
    107,834.20x = 11,084,803,022.22
  5. Step 5: Solve for x
    x = 11,084,803,022.22/107,834.20
  6. Step 6: Final answer
    x = 102,794.87

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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.