Finding the Fourth Proportional to 128,440.22, 192,612.53 and 44,176.73
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Solution
The fourth proportional to 128,440.22, 192,612.53 and 44,176.73 is: 66,248.65
Step by Step Solution
- Step 1: Write the proportion equation
128,440.22 : 192,612.53 = 44,176.73 : x - Step 2: Convert to fraction form
128,440.22/192,612.53 = 44,176.73/x - Step 3: Cross multiply
128,440.22x = 192,612.53 × 44,176.73 - Step 4: Simplify right side
128,440.22x = 8,508,990,879.81 - Step 5: Solve for x
x = 8,508,990,879.81/128,440.22 - Step 6: Final answer
x = 66,248.65
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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.