Finding the Fourth Proportional to 122,675.51, 169,283.82 and 68,968.87
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Solution
The fourth proportional to 122,675.51, 169,283.82 and 68,968.87 is: 95,172.32
Step by Step Solution
- Step 1: Write the proportion equation
122,675.51 : 169,283.82 = 68,968.87 : x - Step 2: Convert to fraction form
122,675.51/169,283.82 = 68,968.87/x - Step 3: Cross multiply
122,675.51x = 169,283.82 × 68,968.87 - Step 4: Simplify right side
122,675.51x = 11,675,313,610.11 - Step 5: Solve for x
x = 11,675,313,610.11/122,675.51 - Step 6: Final answer
x = 95,172.32
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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.