Finding the Fourth Proportional to 115,118.97, 158,864.42 and 66,730.23
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Solution
The fourth proportional to 115,118.97, 158,864.42 and 66,730.23 is: 92,087.86
Step by Step Solution
- Step 1: Write the proportion equation
115,118.97 : 158,864.42 = 66,730.23 : x - Step 2: Convert to fraction form
115,118.97/158,864.42 = 66,730.23/x - Step 3: Cross multiply
115,118.97x = 158,864.42 × 66,730.23 - Step 4: Simplify right side
115,118.97x = 10,601,059,452.24 - Step 5: Solve for x
x = 10,601,059,452.24/115,118.97 - Step 6: Final answer
x = 92,087.86
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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.