Home / 212,786.04-319,190.01-55,015.86

Finding the Fourth Proportional to 212,786.04, 319,190.01 and 55,015.86

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Solution

The fourth proportional to 212,786.04, 319,190.01 and 55,015.86 is: 82,526.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,786.04 : 319,190.01 = 55,015.86 : x
  2. Step 2: Convert to fraction form
    212,786.04/319,190.01 = 55,015.86/x
  3. Step 3: Cross multiply
    212,786.04x = 319,190.01 × 55,015.86
  4. Step 4: Simplify right side
    212,786.04x = 17,560,512,903.56
  5. Step 5: Solve for x
    x = 17,560,512,903.56/212,786.04
  6. Step 6: Final answer
    x = 82,526.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.