Finding the Fourth Proportional to 190,755.99, 263,249.06 and 105,878.79
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Solution
The fourth proportional to 190,755.99, 263,249.06 and 105,878.79 is: 146,115.94
Step by Step Solution
- Step 1: Write the proportion equation
190,755.99 : 263,249.06 = 105,878.79 : x - Step 2: Convert to fraction form
190,755.99/263,249.06 = 105,878.79/x - Step 3: Cross multiply
190,755.99x = 263,249.06 × 105,878.79 - Step 4: Simplify right side
190,755.99x = 27,872,491,412.04 - Step 5: Solve for x
x = 27,872,491,412.04/190,755.99 - Step 6: Final answer
x = 146,115.94
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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.