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Finding the Fourth Proportional to 199,122, 298,503.66 and 72,673.53

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Solution

The fourth proportional to 199,122, 298,503.66 and 72,673.53 is: 108,944.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,122 : 298,503.66 = 72,673.53 : x
  2. Step 2: Convert to fraction form
    199,122/298,503.66 = 72,673.53/x
  3. Step 3: Cross multiply
    199,122x = 298,503.66 × 72,673.53
  4. Step 4: Simplify right side
    199,122x = 21,693,314,690.12
  5. Step 5: Solve for x
    x = 21,693,314,690.12/199,122
  6. Step 6: Final answer
    x = 108,944.84

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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.