Finding the Fourth Proportional to 129,207.96, 193,811.94 and 40,468.41
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Solution
The fourth proportional to 129,207.96, 193,811.94 and 40,468.41 is: 60,702.61
Step by Step Solution
- Step 1: Write the proportion equation
129,207.96 : 193,811.94 = 40,468.41 : x - Step 2: Convert to fraction form
129,207.96/193,811.94 = 40,468.41/x - Step 3: Cross multiply
129,207.96x = 193,811.94 × 40,468.41 - Step 4: Simplify right side
129,207.96x = 7,843,259,879.41 - Step 5: Solve for x
x = 7,843,259,879.41/129,207.96 - Step 6: Final answer
x = 60,702.61
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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.