Home / 165,309.10-228,126.71-89,857.60

Finding the Fourth Proportional to 165,309.10, 228,126.71 and 89,857.60

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Solution

The fourth proportional to 165,309.10, 228,126.71 and 89,857.60 is: 124,003.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,309.10 : 228,126.71 = 89,857.60 : x
  2. Step 2: Convert to fraction form
    165,309.10/228,126.71 = 89,857.60/x
  3. Step 3: Cross multiply
    165,309.10x = 228,126.71 × 89,857.60
  4. Step 4: Simplify right side
    165,309.10x = 20,498,917,636.89
  5. Step 5: Solve for x
    x = 20,498,917,636.89/165,309.10
  6. Step 6: Final answer
    x = 124,003.57

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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.