Home / 199,921.19-299,934.36-71,850.41

Finding the Fourth Proportional to 199,921.19, 299,934.36 and 71,850.41

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Solution

The fourth proportional to 199,921.19, 299,934.36 and 71,850.41 is: 107,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,921.19 : 299,934.36 = 71,850.41 : x
  2. Step 2: Convert to fraction form
    199,921.19/299,934.36 = 71,850.41/x
  3. Step 3: Cross multiply
    199,921.19x = 299,934.36 × 71,850.41
  4. Step 4: Simplify right side
    199,921.19x = 21,550,406,379.84
  5. Step 5: Solve for x
    x = 21,550,406,379.84/199,921.19
  6. Step 6: Final answer
    x = 107,794.51

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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.