Finding the Fourth Proportional to 129,259.26, 193,891.32 and 40,510.80
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Solution
The fourth proportional to 129,259.26, 193,891.32 and 40,510.80 is: 60,766.96
Step by Step Solution
- Step 1: Write the proportion equation
129,259.26 : 193,891.32 = 40,510.80 : x - Step 2: Convert to fraction form
129,259.26/193,891.32 = 40,510.80/x - Step 3: Cross multiply
129,259.26x = 193,891.32 × 40,510.80 - Step 4: Simplify right side
129,259.26x = 7,854,692,486.26 - Step 5: Solve for x
x = 7,854,692,486.26/129,259.26 - Step 6: Final answer
x = 60,766.96
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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.