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Finding the Fourth Proportional to 199,850.09, 299,626.90 and 120,945.56

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Solution

The fourth proportional to 199,850.09, 299,626.90 and 120,945.56 is: 181,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,850.09 : 299,626.90 = 120,945.56 : x
  2. Step 2: Convert to fraction form
    199,850.09/299,626.90 = 120,945.56/x
  3. Step 3: Cross multiply
    199,850.09x = 299,626.90 × 120,945.56
  4. Step 4: Simplify right side
    199,850.09x = 36,238,541,411.07
  5. Step 5: Solve for x
    x = 36,238,541,411.07/199,850.09
  6. Step 6: Final answer
    x = 181,328.63

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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.