Finding the Fourth Proportional to 144,651.85, 199,608.46 and 80,980.99
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Solution
The fourth proportional to 144,651.85, 199,608.46 and 80,980.99 is: 111,747.55
Step by Step Solution
- Step 1: Write the proportion equation
144,651.85 : 199,608.46 = 80,980.99 : x - Step 2: Convert to fraction form
144,651.85/199,608.46 = 80,980.99/x - Step 3: Cross multiply
144,651.85x = 199,608.46 × 80,980.99 - Step 4: Simplify right side
144,651.85x = 16,164,490,001.70 - Step 5: Solve for x
x = 16,164,490,001.70/144,651.85 - Step 6: Final answer
x = 111,747.55
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1.5x scale
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.