Finding the Fourth Proportional to 115,363.97, 159,138.31 and 67,608.09
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Solution
The fourth proportional to 115,363.97, 159,138.31 and 67,608.09 is: 93,261.68
Step by Step Solution
- Step 1: Write the proportion equation
115,363.97 : 159,138.31 = 67,608.09 : x - Step 2: Convert to fraction form
115,363.97/159,138.31 = 67,608.09/x - Step 3: Cross multiply
115,363.97x = 159,138.31 × 67,608.09 - Step 4: Simplify right side
115,363.97x = 10,759,037,015.91 - Step 5: Solve for x
x = 10,759,037,015.91/115,363.97 - Step 6: Final answer
x = 93,261.68
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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.