Finding the Fourth Proportional to 112,159.09, 154,775.23 and 61,858.09
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Solution
The fourth proportional to 112,159.09, 154,775.23 and 61,858.09 is: 85,361.78
Step by Step Solution
- Step 1: Write the proportion equation
112,159.09 : 154,775.23 = 61,858.09 : x - Step 2: Convert to fraction form
112,159.09/154,775.23 = 61,858.09/x - Step 3: Cross multiply
112,159.09x = 154,775.23 × 61,858.09 - Step 4: Simplify right side
112,159.09x = 9,574,100,107.11 - Step 5: Solve for x
x = 9,574,100,107.11/112,159.09 - Step 6: Final answer
x = 85,361.78
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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.