Finding the Fourth Proportional to 146,211.68, 201,772.78 and 79,143.68
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Solution
The fourth proportional to 146,211.68, 201,772.78 and 79,143.68 is: 109,218.64
Step by Step Solution
- Step 1: Write the proportion equation
146,211.68 : 201,772.78 = 79,143.68 : x - Step 2: Convert to fraction form
146,211.68/201,772.78 = 79,143.68/x - Step 3: Cross multiply
146,211.68x = 201,772.78 × 79,143.68 - Step 4: Simplify right side
146,211.68x = 15,969,040,333.03 - Step 5: Solve for x
x = 15,969,040,333.03/146,211.68 - Step 6: Final answer
x = 109,218.64
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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.