Home / 165,324.03-228,172.14-100,830.66

Finding the Fourth Proportional to 165,324.03, 228,172.14 and 100,830.66

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Solution

The fourth proportional to 165,324.03, 228,172.14 and 100,830.66 is: 139,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,324.03 : 228,172.14 = 100,830.66 : x
  2. Step 2: Convert to fraction form
    165,324.03/228,172.14 = 100,830.66/x
  3. Step 3: Cross multiply
    165,324.03x = 228,172.14 × 100,830.66
  4. Step 4: Simplify right side
    165,324.03x = 23,006,747,469.81
  5. Step 5: Solve for x
    x = 23,006,747,469.81/165,324.03
  6. Step 6: Final answer
    x = 139,161.55

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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.