Finding the Fourth Proportional to 144,319.91, 199,161.76 and 80,657.70
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Solution
The fourth proportional to 144,319.91, 199,161.76 and 80,657.70 is: 111,307.79
Step by Step Solution
- Step 1: Write the proportion equation
144,319.91 : 199,161.76 = 80,657.70 : x - Step 2: Convert to fraction form
144,319.91/199,161.76 = 80,657.70/x - Step 3: Cross multiply
144,319.91x = 199,161.76 × 80,657.70 - Step 4: Simplify right side
144,319.91x = 16,063,929,287.91 - Step 5: Solve for x
x = 16,063,929,287.91/144,319.91 - Step 6: Final answer
x = 111,307.79
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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.