Finding the Fourth Proportional to 197,133.26, 272,043.66 and 106,489.21
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Solution
The fourth proportional to 197,133.26, 272,043.66 and 106,489.21 is: 146,954.98
Step by Step Solution
- Step 1: Write the proportion equation
197,133.26 : 272,043.66 = 106,489.21 : x - Step 2: Convert to fraction form
197,133.26/272,043.66 = 106,489.21/x - Step 3: Cross multiply
197,133.26x = 272,043.66 × 106,489.21 - Step 4: Simplify right side
197,133.26x = 28,969,713,903.09 - Step 5: Solve for x
x = 28,969,713,903.09/197,133.26 - Step 6: Final answer
x = 146,954.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.