Finding the Fourth Proportional to 112,504.76, 168,673.82 and 68,121.08
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Solution
The fourth proportional to 112,504.76, 168,673.82 and 68,121.08 is: 102,131.17
Step by Step Solution
- Step 1: Write the proportion equation
112,504.76 : 168,673.82 = 68,121.08 : x - Step 2: Convert to fraction form
112,504.76/168,673.82 = 68,121.08/x - Step 3: Cross multiply
112,504.76x = 168,673.82 × 68,121.08 - Step 4: Simplify right side
112,504.76x = 11,490,242,786.13 - Step 5: Solve for x
x = 11,490,242,786.13/112,504.76 - Step 6: Final answer
x = 102,131.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.