Home / 165,662.20-228,615.78-90,210.70

Finding the Fourth Proportional to 165,662.20, 228,615.78 and 90,210.70

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Solution

The fourth proportional to 165,662.20, 228,615.78 and 90,210.70 is: 124,491.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,662.20 : 228,615.78 = 90,210.70 : x
  2. Step 2: Convert to fraction form
    165,662.20/228,615.78 = 90,210.70/x
  3. Step 3: Cross multiply
    165,662.20x = 228,615.78 × 90,210.70
  4. Step 4: Simplify right side
    165,662.20x = 20,623,589,544.85
  5. Step 5: Solve for x
    x = 20,623,589,544.85/165,662.20
  6. Step 6: Final answer
    x = 124,491.82

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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.