Home / 165,310.22-228,153.04-100,816.87

Finding the Fourth Proportional to 165,310.22, 228,153.04 and 100,816.87

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Solution

The fourth proportional to 165,310.22, 228,153.04 and 100,816.87 is: 139,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,310.22 : 228,153.04 = 100,816.87 : x
  2. Step 2: Convert to fraction form
    165,310.22/228,153.04 = 100,816.87/x
  3. Step 3: Cross multiply
    165,310.22x = 228,153.04 × 100,816.87
  4. Step 4: Simplify right side
    165,310.22x = 23,001,675,373.78
  5. Step 5: Solve for x
    x = 23,001,675,373.78/165,310.22
  6. Step 6: Final answer
    x = 139,142.49

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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.