Finding the Fourth Proportional to 115,124.97, 158,828.79 and 69,786.42
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Solution
The fourth proportional to 115,124.97, 158,828.79 and 69,786.42 is: 96,278.79
Step by Step Solution
- Step 1: Write the proportion equation
115,124.97 : 158,828.79 = 69,786.42 : x - Step 2: Convert to fraction form
115,124.97/158,828.79 = 69,786.42/x - Step 3: Cross multiply
115,124.97x = 158,828.79 × 69,786.42 - Step 4: Simplify right side
115,124.97x = 11,084,092,647.03 - Step 5: Solve for x
x = 11,084,092,647.03/115,124.97 - Step 6: Final answer
x = 96,278.79
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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.