Finding the Fourth Proportional to 166,972.26, 230,421.76 and 91,525.62
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Solution
The fourth proportional to 166,972.26, 230,421.76 and 91,525.62 is: 126,305.38
Step by Step Solution
- Step 1: Write the proportion equation
166,972.26 : 230,421.76 = 91,525.62 : x - Step 2: Convert to fraction form
166,972.26/230,421.76 = 91,525.62/x - Step 3: Cross multiply
166,972.26x = 230,421.76 × 91,525.62 - Step 4: Simplify right side
166,972.26x = 21,089,494,445.49 - Step 5: Solve for x
x = 21,089,494,445.49/166,972.26 - Step 6: Final answer
x = 126,305.38
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1.5x scale
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.