Finding the Fourth Proportional to 146,078.75, 201,588.69 and 79,010.75
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Solution
The fourth proportional to 146,078.75, 201,588.69 and 79,010.75 is: 109,034.84
Step by Step Solution
- Step 1: Write the proportion equation
146,078.75 : 201,588.69 = 79,010.75 : x - Step 2: Convert to fraction form
146,078.75/201,588.69 = 79,010.75/x - Step 3: Cross multiply
146,078.75x = 201,588.69 × 79,010.75 - Step 4: Simplify right side
146,078.75x = 15,927,673,588.42 - Step 5: Solve for x
x = 15,927,673,588.42/146,078.75 - Step 6: Final answer
x = 109,034.84
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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.