Finding the Fourth Proportional to 141,153.92, 211,287.99 and 74,391.63
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Solution
The fourth proportional to 141,153.92, 211,287.99 and 74,391.63 is: 111,354.03
Step by Step Solution
- Step 1: Write the proportion equation
141,153.92 : 211,287.99 = 74,391.63 : x - Step 2: Convert to fraction form
141,153.92/211,287.99 = 74,391.63/x - Step 3: Cross multiply
141,153.92x = 211,287.99 × 74,391.63 - Step 4: Simplify right side
141,153.92x = 15,718,057,975.52 - Step 5: Solve for x
x = 15,718,057,975.52/141,153.92 - Step 6: Final answer
x = 111,354.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.