Finding the Fourth Proportional to 121,555.44, 167,754.94 and 67,850.92
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Solution
The fourth proportional to 121,555.44, 167,754.94 and 67,850.92 is: 93,638.98
Step by Step Solution
- Step 1: Write the proportion equation
121,555.44 : 167,754.94 = 67,850.92 : x - Step 2: Convert to fraction form
121,555.44/167,754.94 = 67,850.92/x - Step 3: Cross multiply
121,555.44x = 167,754.94 × 67,850.92 - Step 4: Simplify right side
121,555.44x = 11,382,327,013.54 - Step 5: Solve for x
x = 11,382,327,013.54/121,555.44 - Step 6: Final answer
x = 93,638.98
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1.5x scale
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.