Finding the Fourth Proportional to 129,649.26, 194,473.88 and 31,153.26
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Solution
The fourth proportional to 129,649.26, 194,473.88 and 31,153.26 is: 46,729.89
Step by Step Solution
- Step 1: Write the proportion equation
129,649.26 : 194,473.88 = 31,153.26 : x - Step 2: Convert to fraction form
129,649.26/194,473.88 = 31,153.26/x - Step 3: Cross multiply
129,649.26x = 194,473.88 × 31,153.26 - Step 4: Simplify right side
129,649.26x = 6,058,495,346.85 - Step 5: Solve for x
x = 6,058,495,346.85/129,649.26 - Step 6: Final answer
x = 46,729.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.