Finding the Fourth Proportional to 147,640.62, 203,743.99 and 80,572.62
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Solution
The fourth proportional to 147,640.62, 203,743.99 and 80,572.62 is: 111,190.18
Step by Step Solution
- Step 1: Write the proportion equation
147,640.62 : 203,743.99 = 80,572.62 : x - Step 2: Convert to fraction form
147,640.62/203,743.99 = 80,572.62/x - Step 3: Cross multiply
147,640.62x = 203,743.99 × 80,572.62 - Step 4: Simplify right side
147,640.62x = 16,416,187,083.55 - Step 5: Solve for x
x = 16,416,187,083.55/147,640.62 - Step 6: Final answer
x = 111,190.18
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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.