Home / 118,905.26-164,087.06-65,190.66

Finding the Fourth Proportional to 118,905.26, 164,087.06 and 65,190.66

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Solution

The fourth proportional to 118,905.26, 164,087.06 and 65,190.66 is: 89,961.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,905.26 : 164,087.06 = 65,190.66 : x
  2. Step 2: Convert to fraction form
    118,905.26/164,087.06 = 65,190.66/x
  3. Step 3: Cross multiply
    118,905.26x = 164,087.06 × 65,190.66
  4. Step 4: Simplify right side
    118,905.26x = 10,696,943,738.86
  5. Step 5: Solve for x
    x = 10,696,943,738.86/118,905.26
  6. Step 6: Final answer
    x = 89,961.91

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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.