Finding the Fourth Proportional to 122,679.63, 169,297.09 and 68,965.09
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Solution
The fourth proportional to 122,679.63, 169,297.09 and 68,965.09 is: 95,171.37
Step by Step Solution
- Step 1: Write the proportion equation
122,679.63 : 169,297.09 = 68,965.09 : x - Step 2: Convert to fraction form
122,679.63/169,297.09 = 68,965.09/x - Step 3: Cross multiply
122,679.63x = 169,297.09 × 68,965.09 - Step 4: Simplify right side
122,679.63x = 11,675,588,452.93 - Step 5: Solve for x
x = 11,675,588,452.93/122,679.63 - Step 6: Final answer
x = 95,171.37
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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.