Finding the Fourth Proportional to 128,635.05, 192,983.23 and 44,395.93
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Solution
The fourth proportional to 128,635.05, 192,983.23 and 44,395.93 is: 66,604.47
Step by Step Solution
- Step 1: Write the proportion equation
128,635.05 : 192,983.23 = 44,395.93 : x - Step 2: Convert to fraction form
128,635.05/192,983.23 = 44,395.93/x - Step 3: Cross multiply
128,635.05x = 192,983.23 × 44,395.93 - Step 4: Simplify right side
128,635.05x = 8,567,670,017.25 - Step 5: Solve for x
x = 8,567,670,017.25/128,635.05 - Step 6: Final answer
x = 66,604.47
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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.