Finding the Fourth Proportional to 144,287.50, 199,138.62 and 87,687.94
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Solution
The fourth proportional to 144,287.50, 199,138.62 and 87,687.94 is: 121,022.65
Step by Step Solution
- Step 1: Write the proportion equation
144,287.50 : 199,138.62 = 87,687.94 : x - Step 2: Convert to fraction form
144,287.50/199,138.62 = 87,687.94/x - Step 3: Cross multiply
144,287.50x = 199,138.62 × 87,687.94 - Step 4: Simplify right side
144,287.50x = 17,462,055,362.24 - Step 5: Solve for x
x = 17,462,055,362.24/144,287.50 - Step 6: Final answer
x = 121,022.65
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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.