Finding the Fourth Proportional to 121,822.03, 168,115.60 and 68,109.99
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Solution
The fourth proportional to 121,822.03, 168,115.60 and 68,109.99 is: 93,992.46
Step by Step Solution
- Step 1: Write the proportion equation
121,822.03 : 168,115.60 = 68,109.99 : x - Step 2: Convert to fraction form
121,822.03/168,115.60 = 68,109.99/x - Step 3: Cross multiply
121,822.03x = 168,115.60 × 68,109.99 - Step 4: Simplify right side
121,822.03x = 11,450,351,834.84 - Step 5: Solve for x
x = 11,450,351,834.84/121,822.03 - Step 6: Final answer
x = 93,992.46
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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.