Finding the Fourth Proportional to 166,821.50, 230,213.68 and 91,372.70
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Solution
The fourth proportional to 166,821.50, 230,213.68 and 91,372.70 is: 126,094.33
Step by Step Solution
- Step 1: Write the proportion equation
166,821.50 : 230,213.68 = 91,372.70 : x - Step 2: Convert to fraction form
166,821.50/230,213.68 = 91,372.70/x - Step 3: Cross multiply
166,821.50x = 230,213.68 × 91,372.70 - Step 4: Simplify right side
166,821.50x = 21,035,245,518.54 - Step 5: Solve for x
x = 21,035,245,518.54/166,821.50 - Step 6: Final answer
x = 126,094.33
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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.