Finding the Fourth Proportional to 115,153.26, 172,716.21 and 40,267.68
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Solution
The fourth proportional to 115,153.26, 172,716.21 and 40,267.68 is: 60,396.74
Step by Step Solution
- Step 1: Write the proportion equation
115,153.26 : 172,716.21 = 40,267.68 : x - Step 2: Convert to fraction form
115,153.26/172,716.21 = 40,267.68/x - Step 3: Cross multiply
115,153.26x = 172,716.21 × 40,267.68 - Step 4: Simplify right side
115,153.26x = 6,954,881,075.09 - Step 5: Solve for x
x = 6,954,881,075.09/115,153.26 - Step 6: Final answer
x = 60,396.74
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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.