Finding the Fourth Proportional to 198,753.39, 274,183.11 and 118,123.88
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Solution
The fourth proportional to 198,753.39, 274,183.11 and 118,123.88 is: 162,953.55
Step by Step Solution
- Step 1: Write the proportion equation
198,753.39 : 274,183.11 = 118,123.88 : x - Step 2: Convert to fraction form
198,753.39/274,183.11 = 118,123.88/x - Step 3: Cross multiply
198,753.39x = 274,183.11 × 118,123.88 - Step 4: Simplify right side
198,753.39x = 32,387,571,412.75 - Step 5: Solve for x
x = 32,387,571,412.75/198,753.39 - Step 6: Final answer
x = 162,953.55
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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.