Home / 198,868.31-298,239.01-65,723.75

Finding the Fourth Proportional to 198,868.31, 298,239.01 and 65,723.75

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Solution

The fourth proportional to 198,868.31, 298,239.01 and 65,723.75 is: 98,564.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,868.31 : 298,239.01 = 65,723.75 : x
  2. Step 2: Convert to fraction form
    198,868.31/298,239.01 = 65,723.75/x
  3. Step 3: Cross multiply
    198,868.31x = 298,239.01 × 65,723.75
  4. Step 4: Simplify right side
    198,868.31x = 19,601,384,477.98
  5. Step 5: Solve for x
    x = 19,601,384,477.98/198,868.31
  6. Step 6: Final answer
    x = 98,564.65

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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.