Finding the Fourth Proportional to 104,310.89, 143,908.30 and 68,054.99
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Solution
The fourth proportional to 104,310.89, 143,908.30 and 68,054.99 is: 93,889.31
Step by Step Solution
- Step 1: Write the proportion equation
104,310.89 : 143,908.30 = 68,054.99 : x - Step 2: Convert to fraction form
104,310.89/143,908.30 = 68,054.99/x - Step 3: Cross multiply
104,310.89x = 143,908.30 × 68,054.99 - Step 4: Simplify right side
104,310.89x = 9,793,676,900.13 - Step 5: Solve for x
x = 9,793,676,900.13/104,310.89 - Step 6: Final answer
x = 93,889.31
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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.