Finding the Fourth Proportional to 151,435.97, 208,982.48 and 86,900.09
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Solution
The fourth proportional to 151,435.97, 208,982.48 and 86,900.09 is: 119,922.60
Step by Step Solution
- Step 1: Write the proportion equation
151,435.97 : 208,982.48 = 86,900.09 : x - Step 2: Convert to fraction form
151,435.97/208,982.48 = 86,900.09/x - Step 3: Cross multiply
151,435.97x = 208,982.48 × 86,900.09 - Step 4: Simplify right side
151,435.97x = 18,160,595,329.82 - Step 5: Solve for x
x = 18,160,595,329.82/151,435.97 - Step 6: Final answer
x = 119,922.60
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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.