Home / 190,906.32-263,234.83-121,905.05

Finding the Fourth Proportional to 190,906.32, 263,234.83 and 121,905.05

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Solution

The fourth proportional to 190,906.32, 263,234.83 and 121,905.05 is: 168,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,906.32 : 263,234.83 = 121,905.05 : x
  2. Step 2: Convert to fraction form
    190,906.32/263,234.83 = 121,905.05/x
  3. Step 3: Cross multiply
    190,906.32x = 263,234.83 × 121,905.05
  4. Step 4: Simplify right side
    190,906.32x = 32,089,655,466.22
  5. Step 5: Solve for x
    x = 32,089,655,466.22/190,906.32
  6. Step 6: Final answer
    x = 168,091.11

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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.