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Finding the Fourth Proportional to 199,746.52, 299,620.90 and 66,626.41

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Solution

The fourth proportional to 199,746.52, 299,620.90 and 66,626.41 is: 99,939.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,746.52 : 299,620.90 = 66,626.41 : x
  2. Step 2: Convert to fraction form
    199,746.52/299,620.90 = 66,626.41/x
  3. Step 3: Cross multiply
    199,746.52x = 299,620.90 × 66,626.41
  4. Step 4: Simplify right side
    199,746.52x = 19,962,663,845.78
  5. Step 5: Solve for x
    x = 19,962,663,845.78/199,746.52
  6. Step 6: Final answer
    x = 99,939.99

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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.