Home / 165,310.10-228,128.09-89,858.60

Finding the Fourth Proportional to 165,310.10, 228,128.09 and 89,858.60

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Solution

The fourth proportional to 165,310.10, 228,128.09 and 89,858.60 is: 124,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,310.10 : 228,128.09 = 89,858.60 : x
  2. Step 2: Convert to fraction form
    165,310.10/228,128.09 = 89,858.60/x
  3. Step 3: Cross multiply
    165,310.10x = 228,128.09 × 89,858.60
  4. Step 4: Simplify right side
    165,310.10x = 20,499,270,788.07
  5. Step 5: Solve for x
    x = 20,499,270,788.07/165,310.10
  6. Step 6: Final answer
    x = 124,004.95

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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.