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Finding the Fourth Proportional to 199,925.59, 299,903.85 and 66,806.31

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Solution

The fourth proportional to 199,925.59, 299,903.85 and 66,806.31 is: 100,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,925.59 : 299,903.85 = 66,806.31 : x
  2. Step 2: Convert to fraction form
    199,925.59/299,903.85 = 66,806.31/x
  3. Step 3: Cross multiply
    199,925.59x = 299,903.85 × 66,806.31
  4. Step 4: Simplify right side
    199,925.59x = 20,035,469,573.29
  5. Step 5: Solve for x
    x = 20,035,469,573.29/199,925.59
  6. Step 6: Final answer
    x = 100,214.63

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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.