Finding the Fourth Proportional to 137,556.70, 206,351.97 and 53,318.26
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Solution
The fourth proportional to 137,556.70, 206,351.97 and 53,318.26 is: 79,983.95
Step by Step Solution
- Step 1: Write the proportion equation
137,556.70 : 206,351.97 = 53,318.26 : x - Step 2: Convert to fraction form
137,556.70/206,351.97 = 53,318.26/x - Step 3: Cross multiply
137,556.70x = 206,351.97 × 53,318.26 - Step 4: Simplify right side
137,556.70x = 11,002,327,987.97 - Step 5: Solve for x
x = 11,002,327,987.97/137,556.70 - Step 6: Final answer
x = 79,983.95
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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.