Finding the Fourth Proportional to 141,902.79, 195,818.80 and 80,640.99
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Solution
The fourth proportional to 141,902.79, 195,818.80 and 80,640.99 is: 111,280.56
Step by Step Solution
- Step 1: Write the proportion equation
141,902.79 : 195,818.80 = 80,640.99 : x - Step 2: Convert to fraction form
141,902.79/195,818.80 = 80,640.99/x - Step 3: Cross multiply
141,902.79x = 195,818.80 × 80,640.99 - Step 4: Simplify right side
141,902.79x = 15,791,022,222.85 - Step 5: Solve for x
x = 15,791,022,222.85/141,902.79 - Step 6: Final answer
x = 111,280.56
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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.