Home / 165,230.85-228,015.75-89,778.81

Finding the Fourth Proportional to 165,230.85, 228,015.75 and 89,778.81

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Solution

The fourth proportional to 165,230.85, 228,015.75 and 89,778.81 is: 123,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,230.85 : 228,015.75 = 89,778.81 : x
  2. Step 2: Convert to fraction form
    165,230.85/228,015.75 = 89,778.81/x
  3. Step 3: Cross multiply
    165,230.85x = 228,015.75 × 89,778.81
  4. Step 4: Simplify right side
    165,230.85x = 20,470,982,696.26
  5. Step 5: Solve for x
    x = 20,470,982,696.26/165,230.85
  6. Step 6: Final answer
    x = 123,893.22

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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.