Finding the Fourth Proportional to 107,778.40, 161,590.80 and 41,192.80
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Solution
The fourth proportional to 107,778.40, 161,590.80 and 41,192.80 is: 61,759.85
Step by Step Solution
- Step 1: Write the proportion equation
107,778.40 : 161,590.80 = 41,192.80 : x - Step 2: Convert to fraction form
107,778.40/161,590.80 = 41,192.80/x - Step 3: Cross multiply
107,778.40x = 161,590.80 × 41,192.80 - Step 4: Simplify right side
107,778.40x = 6,656,377,506.24 - Step 5: Solve for x
x = 6,656,377,506.24/107,778.40 - Step 6: Final answer
x = 61,759.85
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1.5x scale
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.