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Finding the Fourth Proportional to 199,767.42, 299,672.19 and 66,601.26

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Solution

The fourth proportional to 199,767.42, 299,672.19 and 66,601.26 is: 99,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,767.42 : 299,672.19 = 66,601.26 : x
  2. Step 2: Convert to fraction form
    199,767.42/299,672.19 = 66,601.26/x
  3. Step 3: Cross multiply
    199,767.42x = 299,672.19 × 66,601.26
  4. Step 4: Simplify right side
    199,767.42x = 19,958,545,440.96
  5. Step 5: Solve for x
    x = 19,958,545,440.96/199,767.42
  6. Step 6: Final answer
    x = 99,908.91

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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.