Finding the Fourth Proportional to 122,110.35, 168,520.05 and 68,398.65
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Solution
The fourth proportional to 122,110.35, 168,520.05 and 68,398.65 is: 94,394.49
Step by Step Solution
- Step 1: Write the proportion equation
122,110.35 : 168,520.05 = 68,398.65 : x - Step 2: Convert to fraction form
122,110.35/168,520.05 = 68,398.65/x - Step 3: Cross multiply
122,110.35x = 168,520.05 × 68,398.65 - Step 4: Simplify right side
122,110.35x = 11,526,543,917.93 - Step 5: Solve for x
x = 11,526,543,917.93/122,110.35 - Step 6: Final answer
x = 94,394.49
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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.