Home / 199,015.89-298,212.31-79,008.02

Finding the Fourth Proportional to 199,015.89, 298,212.31 and 79,008.02

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Solution

The fourth proportional to 199,015.89, 298,212.31 and 79,008.02 is: 118,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,015.89 : 298,212.31 = 79,008.02 : x
  2. Step 2: Convert to fraction form
    199,015.89/298,212.31 = 79,008.02/x
  3. Step 3: Cross multiply
    199,015.89x = 298,212.31 × 79,008.02
  4. Step 4: Simplify right side
    199,015.89x = 23,561,165,519.41
  5. Step 5: Solve for x
    x = 23,561,165,519.41/199,015.89
  6. Step 6: Final answer
    x = 118,388.36

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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.