Finding the Fourth Proportional to 121,727.68, 167,982.36 and 68,013.44
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Solution
The fourth proportional to 121,727.68, 167,982.36 and 68,013.44 is: 93,857.52
Step by Step Solution
- Step 1: Write the proportion equation
121,727.68 : 167,982.36 = 68,013.44 : x - Step 2: Convert to fraction form
121,727.68/167,982.36 = 68,013.44/x - Step 3: Cross multiply
121,727.68x = 167,982.36 × 68,013.44 - Step 4: Simplify right side
121,727.68x = 11,425,058,162.92 - Step 5: Solve for x
x = 11,425,058,162.92/121,727.68 - Step 6: Final answer
x = 93,857.52
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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.