Finding the Fourth Proportional to 115,998.75, 160,075.55 and 68,255.19
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Solution
The fourth proportional to 115,998.75, 160,075.55 and 68,255.19 is: 94,190.56
Step by Step Solution
- Step 1: Write the proportion equation
115,998.75 : 160,075.55 = 68,255.19 : x - Step 2: Convert to fraction form
115,998.75/160,075.55 = 68,255.19/x - Step 3: Cross multiply
115,998.75x = 160,075.55 × 68,255.19 - Step 4: Simplify right side
115,998.75x = 10,925,987,250.24 - Step 5: Solve for x
x = 10,925,987,250.24/115,998.75 - Step 6: Final answer
x = 94,190.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.