Finding the Fourth Proportional to 128,394.16, 192,595.49 and 44,153.48
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Solution
The fourth proportional to 128,394.16, 192,595.49 and 44,153.48 is: 66,231.68
Step by Step Solution
- Step 1: Write the proportion equation
128,394.16 : 192,595.49 = 44,153.48 : x - Step 2: Convert to fraction form
128,394.16/192,595.49 = 44,153.48/x - Step 3: Cross multiply
128,394.16x = 192,595.49 × 44,153.48 - Step 4: Simplify right side
128,394.16x = 8,503,761,115.81 - Step 5: Solve for x
x = 8,503,761,115.81/128,394.16 - Step 6: Final answer
x = 66,231.68
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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.