Home / 165,324.10-228,172.16-100,830.75

Finding the Fourth Proportional to 165,324.10, 228,172.16 and 100,830.75

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Solution

The fourth proportional to 165,324.10, 228,172.16 and 100,830.75 is: 139,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,324.10 : 228,172.16 = 100,830.75 : x
  2. Step 2: Convert to fraction form
    165,324.10/228,172.16 = 100,830.75/x
  3. Step 3: Cross multiply
    165,324.10x = 228,172.16 × 100,830.75
  4. Step 4: Simplify right side
    165,324.10x = 23,006,770,021.92
  5. Step 5: Solve for x
    x = 23,006,770,021.92/165,324.10
  6. Step 6: Final answer
    x = 139,161.62

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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.