Finding the Fourth Proportional to 162,879.66, 224,771.76 and 91,261.08
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Solution
The fourth proportional to 162,879.66, 224,771.76 and 91,261.08 is: 125,939.07
Step by Step Solution
- Step 1: Write the proportion equation
162,879.66 : 224,771.76 = 91,261.08 : x - Step 2: Convert to fraction form
162,879.66/224,771.76 = 91,261.08/x - Step 3: Cross multiply
162,879.66x = 224,771.76 × 91,261.08 - Step 4: Simplify right side
162,879.66x = 20,512,913,571.10 - Step 5: Solve for x
x = 20,512,913,571.10/162,879.66 - Step 6: Final answer
x = 125,939.07
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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.