Finding the Fourth Proportional to 184,990.73, 255,287.21 and 100,107.79
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Solution
The fourth proportional to 184,990.73, 255,287.21 and 100,107.79 is: 138,148.75
Step by Step Solution
- Step 1: Write the proportion equation
184,990.73 : 255,287.21 = 100,107.79 : x - Step 2: Convert to fraction form
184,990.73/255,287.21 = 100,107.79/x - Step 3: Cross multiply
184,990.73x = 255,287.21 × 100,107.79 - Step 4: Simplify right side
184,990.73x = 25,556,237,907.83 - Step 5: Solve for x
x = 25,556,237,907.83/184,990.73 - Step 6: Final answer
x = 138,148.75
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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.