Finding the Fourth Proportional to 142,812.18, 214,143.39 and 49,295.70
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Solution
The fourth proportional to 142,812.18, 214,143.39 and 49,295.70 is: 73,917.70
Step by Step Solution
- Step 1: Write the proportion equation
142,812.18 : 214,143.39 = 49,295.70 : x - Step 2: Convert to fraction form
142,812.18/214,143.39 = 49,295.70/x - Step 3: Cross multiply
142,812.18x = 214,143.39 × 49,295.70 - Step 4: Simplify right side
142,812.18x = 10,556,348,310.42 - Step 5: Solve for x
x = 10,556,348,310.42/142,812.18 - Step 6: Final answer
x = 73,917.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.