Finding the Fourth Proportional to 122,351.16, 168,843.57 and 68,635.02
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Solution
The fourth proportional to 122,351.16, 168,843.57 and 68,635.02 is: 94,715.75
Step by Step Solution
- Step 1: Write the proportion equation
122,351.16 : 168,843.57 = 68,635.02 : x - Step 2: Convert to fraction form
122,351.16/168,843.57 = 68,635.02/x - Step 3: Cross multiply
122,351.16x = 168,843.57 × 68,635.02 - Step 4: Simplify right side
122,351.16x = 11,588,581,803.82 - Step 5: Solve for x
x = 11,588,581,803.82/122,351.16 - Step 6: Final answer
x = 94,715.75
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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.