Finding the Fourth Proportional to 121,072.08, 167,161.74 and 75,768.36
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Solution
The fourth proportional to 121,072.08, 167,161.74 and 75,768.36 is: 104,611.82
Step by Step Solution
- Step 1: Write the proportion equation
121,072.08 : 167,161.74 = 75,768.36 : x - Step 2: Convert to fraction form
121,072.08/167,161.74 = 75,768.36/x - Step 3: Cross multiply
121,072.08x = 167,161.74 × 75,768.36 - Step 4: Simplify right side
121,072.08x = 12,665,570,894.55 - Step 5: Solve for x
x = 12,665,570,894.55/121,072.08 - Step 6: Final answer
x = 104,611.82
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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.