Finding the Fourth Proportional to 121,768.08, 168,039.39 and 68,053.08
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Solution
The fourth proportional to 121,768.08, 168,039.39 and 68,053.08 is: 93,912.94
Step by Step Solution
- Step 1: Write the proportion equation
121,768.08 : 168,039.39 = 68,053.08 : x - Step 2: Convert to fraction form
121,768.08/168,039.39 = 68,053.08/x - Step 3: Cross multiply
121,768.08x = 168,039.39 × 68,053.08 - Step 4: Simplify right side
121,768.08x = 11,435,598,050.82 - Step 5: Solve for x
x = 11,435,598,050.82/121,768.08 - Step 6: Final answer
x = 93,912.94
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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.