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Finding the Fourth Proportional to 199,145.58, 298,603.35 and 65,989.95

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Solution

The fourth proportional to 199,145.58, 298,603.35 and 65,989.95 is: 98,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,145.58 : 298,603.35 = 65,989.95 : x
  2. Step 2: Convert to fraction form
    199,145.58/298,603.35 = 65,989.95/x
  3. Step 3: Cross multiply
    199,145.58x = 298,603.35 × 65,989.95
  4. Step 4: Simplify right side
    199,145.58x = 19,704,820,136.33
  5. Step 5: Solve for x
    x = 19,704,820,136.33/199,145.58
  6. Step 6: Final answer
    x = 98,946.81

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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.