Finding the Fourth Proportional to 121,151.75, 167,190.35 and 73,371.87
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Solution
The fourth proportional to 121,151.75, 167,190.35 and 73,371.87 is: 101,253.75
Step by Step Solution
- Step 1: Write the proportion equation
121,151.75 : 167,190.35 = 73,371.87 : x - Step 2: Convert to fraction form
121,151.75/167,190.35 = 73,371.87/x - Step 3: Cross multiply
121,151.75x = 167,190.35 × 73,371.87 - Step 4: Simplify right side
121,151.75x = 12,267,068,808.88 - Step 5: Solve for x
x = 12,267,068,808.88/121,151.75 - Step 6: Final answer
x = 101,253.75
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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.