Home / 157,388.22-217,198.26-85,768.29

Finding the Fourth Proportional to 157,388.22, 217,198.26 and 85,768.29

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Solution

The fourth proportional to 157,388.22, 217,198.26 and 85,768.29 is: 118,361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,388.22 : 217,198.26 = 85,768.29 : x
  2. Step 2: Convert to fraction form
    157,388.22/217,198.26 = 85,768.29/x
  3. Step 3: Cross multiply
    157,388.22x = 217,198.26 × 85,768.29
  4. Step 4: Simplify right side
    157,388.22x = 18,628,723,351.18
  5. Step 5: Solve for x
    x = 18,628,723,351.18/157,388.22
  6. Step 6: Final answer
    x = 118,361.61

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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.