Home / 118,896.20-164,097.60-90,310.48

Finding the Fourth Proportional to 118,896.20, 164,097.60 and 90,310.48

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Solution

The fourth proportional to 118,896.20, 164,097.60 and 90,310.48 is: 124,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,896.20 : 164,097.60 = 90,310.48 : x
  2. Step 2: Convert to fraction form
    118,896.20/164,097.60 = 90,310.48/x
  3. Step 3: Cross multiply
    118,896.20x = 164,097.60 × 90,310.48
  4. Step 4: Simplify right side
    118,896.20x = 14,819,733,022.85
  5. Step 5: Solve for x
    x = 14,819,733,022.85/118,896.20
  6. Step 6: Final answer
    x = 124,644.29

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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.