Finding the Fourth Proportional to 104,858.35, 144,718.80 and 61,849.99
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Solution
The fourth proportional to 104,858.35, 144,718.80 and 61,849.99 is: 85,361.40
Step by Step Solution
- Step 1: Write the proportion equation
104,858.35 : 144,718.80 = 61,849.99 : x - Step 2: Convert to fraction form
104,858.35/144,718.80 = 61,849.99/x - Step 3: Cross multiply
104,858.35x = 144,718.80 × 61,849.99 - Step 4: Simplify right side
104,858.35x = 8,950,855,609.22 - Step 5: Solve for x
x = 8,950,855,609.22/104,858.35 - Step 6: Final answer
x = 85,361.40
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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.