Finding the Fourth Proportional to 121,356.80, 167,452.08 and 67,630.08
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Solution
The fourth proportional to 121,356.80, 167,452.08 and 67,630.08 is: 93,318.20
Step by Step Solution
- Step 1: Write the proportion equation
121,356.80 : 167,452.08 = 67,630.08 : x - Step 2: Convert to fraction form
121,356.80/167,452.08 = 67,630.08/x - Step 3: Cross multiply
121,356.80x = 167,452.08 × 67,630.08 - Step 4: Simplify right side
121,356.80x = 11,324,797,566.57 - Step 5: Solve for x
x = 11,324,797,566.57/121,356.80 - Step 6: Final answer
x = 93,318.20
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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.