Home / 165,640.22-228,558.65-93,040.32

Finding the Fourth Proportional to 165,640.22, 228,558.65 and 93,040.32

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Solution

The fourth proportional to 165,640.22, 228,558.65 and 93,040.32 is: 128,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,640.22 : 228,558.65 = 93,040.32 : x
  2. Step 2: Convert to fraction form
    165,640.22/228,558.65 = 93,040.32/x
  3. Step 3: Cross multiply
    165,640.22x = 228,558.65 × 93,040.32
  4. Step 4: Simplify right side
    165,640.22x = 21,265,169,469.57
  5. Step 5: Solve for x
    x = 21,265,169,469.57/165,640.22
  6. Step 6: Final answer
    x = 128,381.68

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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.