Finding the Fourth Proportional to 122,091.74, 168,478.58 and 68,364.44
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Solution
The fourth proportional to 122,091.74, 168,478.58 and 68,364.44 is: 94,338.44
Step by Step Solution
- Step 1: Write the proportion equation
122,091.74 : 168,478.58 = 68,364.44 : x - Step 2: Convert to fraction form
122,091.74/168,478.58 = 68,364.44/x - Step 3: Cross multiply
122,091.74x = 168,478.58 × 68,364.44 - Step 4: Simplify right side
122,091.74x = 11,517,943,773.70 - Step 5: Solve for x
x = 11,517,943,773.70/122,091.74 - Step 6: Final answer
x = 94,338.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.