Home / 199,972.94-299,974.89-66,853.69

Finding the Fourth Proportional to 199,972.94, 299,974.89 and 66,853.69

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Solution

The fourth proportional to 199,972.94, 299,974.89 and 66,853.69 is: 100,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,972.94 : 299,974.89 = 66,853.69 : x
  2. Step 2: Convert to fraction form
    199,972.94/299,974.89 = 66,853.69/x
  3. Step 3: Cross multiply
    199,972.94x = 299,974.89 × 66,853.69
  4. Step 4: Simplify right side
    199,972.94x = 20,054,427,804.61
  5. Step 5: Solve for x
    x = 20,054,427,804.61/199,972.94
  6. Step 6: Final answer
    x = 100,285.71

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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.