Finding the Fourth Proportional to 128,261.26, 192,373.81 and 44,019.94
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Solution
The fourth proportional to 128,261.26, 192,373.81 and 44,019.94 is: 66,023.70
Step by Step Solution
- Step 1: Write the proportion equation
128,261.26 : 192,373.81 = 44,019.94 : x - Step 2: Convert to fraction form
128,261.26/192,373.81 = 44,019.94/x - Step 3: Cross multiply
128,261.26x = 192,373.81 × 44,019.94 - Step 4: Simplify right side
128,261.26x = 8,468,283,573.77 - Step 5: Solve for x
x = 8,468,283,573.77/128,261.26 - Step 6: Final answer
x = 66,023.70
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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.