Finding the Fourth Proportional to 122,974.70, 172,514.50 and 122,974.70
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Solution
The fourth proportional to 122,974.70, 172,514.50 and 122,974.70 is: 172,514.50
Step by Step Solution
- Step 1: Write the proportion equation
122,974.70 : 172,514.50 = 122,974.70 : x - Step 2: Convert to fraction form
122,974.70/172,514.50 = 122,974.70/x - Step 3: Cross multiply
122,974.70x = 172,514.50 × 122,974.70 - Step 4: Simplify right side
122,974.70x = 21,214,918,883.15 - Step 5: Solve for x
x = 21,214,918,883.15/122,974.70 - Step 6: Final answer
x = 172,514.50
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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.