Home / 165,665.32-228,618.50-90,212.20

Finding the Fourth Proportional to 165,665.32, 228,618.50 and 90,212.20

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Solution

The fourth proportional to 165,665.32, 228,618.50 and 90,212.20 is: 124,493.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,665.32 : 228,618.50 = 90,212.20 : x
  2. Step 2: Convert to fraction form
    165,665.32/228,618.50 = 90,212.20/x
  3. Step 3: Cross multiply
    165,665.32x = 228,618.50 × 90,212.20
  4. Step 4: Simplify right side
    165,665.32x = 20,624,177,845.70
  5. Step 5: Solve for x
    x = 20,624,177,845.70/165,665.32
  6. Step 6: Final answer
    x = 124,493.03

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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.