Finding the Fourth Proportional to 121,514.10, 170,294.70 and 121,514.10
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Solution
The fourth proportional to 121,514.10, 170,294.70 and 121,514.10 is: 170,294.70
Step by Step Solution
- Step 1: Write the proportion equation
121,514.10 : 170,294.70 = 121,514.10 : x - Step 2: Convert to fraction form
121,514.10/170,294.70 = 121,514.10/x - Step 3: Cross multiply
121,514.10x = 170,294.70 × 121,514.10 - Step 4: Simplify right side
121,514.10x = 20,693,207,205.27 - Step 5: Solve for x
x = 20,693,207,205.27/121,514.10 - Step 6: Final answer
x = 170,294.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.