Home / 199,601.40-298,964.70-105,997.80

Finding the Fourth Proportional to 199,601.40, 298,964.70 and 105,997.80

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Solution

The fourth proportional to 199,601.40, 298,964.70 and 105,997.80 is: 158,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,601.40 : 298,964.70 = 105,997.80 : x
  2. Step 2: Convert to fraction form
    199,601.40/298,964.70 = 105,997.80/x
  3. Step 3: Cross multiply
    199,601.40x = 298,964.70 × 105,997.80
  4. Step 4: Simplify right side
    199,601.40x = 31,689,600,477.66
  5. Step 5: Solve for x
    x = 31,689,600,477.66/199,601.40
  6. Step 6: Final answer
    x = 158,764.42

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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.