Finding the Fourth Proportional to 128,088.70, 192,133.05 and 44,982.70
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Solution
The fourth proportional to 128,088.70, 192,133.05 and 44,982.70 is: 67,474.05
Step by Step Solution
- Step 1: Write the proportion equation
128,088.70 : 192,133.05 = 44,982.70 : x - Step 2: Convert to fraction form
128,088.70/192,133.05 = 44,982.70/x - Step 3: Cross multiply
128,088.70x = 192,133.05 × 44,982.70 - Step 4: Simplify right side
128,088.70x = 8,642,663,348.24 - Step 5: Solve for x
x = 8,642,663,348.24/128,088.70 - Step 6: Final answer
x = 67,474.05
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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.