Finding the Fourth Proportional to 122,110.76, 168,508.26 and 68,393.12
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Solution
The fourth proportional to 122,110.76, 168,508.26 and 68,393.12 is: 94,379.94
Step by Step Solution
- Step 1: Write the proportion equation
122,110.76 : 168,508.26 = 68,393.12 : x - Step 2: Convert to fraction form
122,110.76/168,508.26 = 68,393.12/x - Step 3: Cross multiply
122,110.76x = 168,508.26 × 68,393.12 - Step 4: Simplify right side
122,110.76x = 11,524,805,647.17 - Step 5: Solve for x
x = 11,524,805,647.17/122,110.76 - Step 6: Final answer
x = 94,379.94
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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.