Finding the Fourth Proportional to 122,279.80, 170,841.80 and 122,279.80
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Solution
The fourth proportional to 122,279.80, 170,841.80 and 122,279.80 is: 170,841.80
Step by Step Solution
- Step 1: Write the proportion equation
122,279.80 : 170,841.80 = 122,279.80 : x - Step 2: Convert to fraction form
122,279.80/170,841.80 = 122,279.80/x - Step 3: Cross multiply
122,279.80x = 170,841.80 × 122,279.80 - Step 4: Simplify right side
122,279.80x = 20,890,501,135.64 - Step 5: Solve for x
x = 20,890,501,135.64/122,279.80 - Step 6: Final answer
x = 170,841.80
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1.5x scale
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.