Finding the Fourth Proportional to 198,102.49, 273,430.22 and 121,639.91
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Solution
The fourth proportional to 198,102.49, 273,430.22 and 121,639.91 is: 167,893.02
Step by Step Solution
- Step 1: Write the proportion equation
198,102.49 : 273,430.22 = 121,639.91 : x - Step 2: Convert to fraction form
198,102.49/273,430.22 = 121,639.91/x - Step 3: Cross multiply
198,102.49x = 273,430.22 × 121,639.91 - Step 4: Simplify right side
198,102.49x = 33,260,025,376.73 - Step 5: Solve for x
x = 33,260,025,376.73/198,102.49 - Step 6: Final answer
x = 167,893.02
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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.