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Finding the Fourth Proportional to 199,901.92, 299,751 and 66,734.32

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Solution

The fourth proportional to 199,901.92, 299,751 and 66,734.32 is: 100,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,901.92 : 299,751 = 66,734.32 : x
  2. Step 2: Convert to fraction form
    199,901.92/299,751 = 66,734.32/x
  3. Step 3: Cross multiply
    199,901.92x = 299,751 × 66,734.32
  4. Step 4: Simplify right side
    199,901.92x = 20,003,679,154.32
  5. Step 5: Solve for x
    x = 20,003,679,154.32/199,901.92
  6. Step 6: Final answer
    x = 100,067.47

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1.5x scale

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.