Finding the Fourth Proportional to 122,351.14, 168,829.41 and 68,628.70
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Solution
The fourth proportional to 122,351.14, 168,829.41 and 68,628.70 is: 94,699.10
Step by Step Solution
- Step 1: Write the proportion equation
122,351.14 : 168,829.41 = 68,628.70 : x - Step 2: Convert to fraction form
122,351.14/168,829.41 = 68,628.70/x - Step 3: Cross multiply
122,351.14x = 168,829.41 × 68,628.70 - Step 4: Simplify right side
122,351.14x = 11,586,542,930.07 - Step 5: Solve for x
x = 11,586,542,930.07/122,351.14 - Step 6: Final answer
x = 94,699.10
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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.