Finding the Fourth Proportional to 188,136.81, 259,620.50 and 107,569.61
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Solution
The fourth proportional to 188,136.81, 259,620.50 and 107,569.61 is: 148,441.31
Step by Step Solution
- Step 1: Write the proportion equation
188,136.81 : 259,620.50 = 107,569.61 : x - Step 2: Convert to fraction form
188,136.81/259,620.50 = 107,569.61/x - Step 3: Cross multiply
188,136.81x = 259,620.50 × 107,569.61 - Step 4: Simplify right side
188,136.81x = 27,927,274,097.05 - Step 5: Solve for x
x = 27,927,274,097.05/188,136.81 - Step 6: Final answer
x = 148,441.31
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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.