Finding the Fourth Proportional to 128,576.76, 192,747.01 and 44,316.91
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Solution
The fourth proportional to 128,576.76, 192,747.01 and 44,316.91 is: 66,434.65
Step by Step Solution
- Step 1: Write the proportion equation
128,576.76 : 192,747.01 = 44,316.91 : x - Step 2: Convert to fraction form
128,576.76/192,747.01 = 44,316.91/x - Step 3: Cross multiply
128,576.76x = 192,747.01 × 44,316.91 - Step 4: Simplify right side
128,576.76x = 8,541,951,894.94 - Step 5: Solve for x
x = 8,541,951,894.94/128,576.76 - Step 6: Final answer
x = 66,434.65
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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.