Finding the Fourth Proportional to 122,273.48, 168,675.30 and 79,856.84
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Solution
The fourth proportional to 122,273.48, 168,675.30 and 79,856.84 is: 110,161.88
Step by Step Solution
- Step 1: Write the proportion equation
122,273.48 : 168,675.30 = 79,856.84 : x - Step 2: Convert to fraction form
122,273.48/168,675.30 = 79,856.84/x - Step 3: Cross multiply
122,273.48x = 168,675.30 × 79,856.84 - Step 4: Simplify right side
122,273.48x = 13,469,876,444.05 - Step 5: Solve for x
x = 13,469,876,444.05/122,273.48 - Step 6: Final answer
x = 110,161.88
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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.