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Finding the Fourth Proportional to 199,924.20, 299,901.80 and 66,804.93

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Solution

The fourth proportional to 199,924.20, 299,901.80 and 66,804.93 is: 100,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,924.20 : 299,901.80 = 66,804.93 : x
  2. Step 2: Convert to fraction form
    199,924.20/299,901.80 = 66,804.93/x
  3. Step 3: Cross multiply
    199,924.20x = 299,901.80 × 66,804.93
  4. Step 4: Simplify right side
    199,924.20x = 20,034,918,755.87
  5. Step 5: Solve for x
    x = 20,034,918,755.87/199,924.20
  6. Step 6: Final answer
    x = 100,212.57

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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.