Finding the Fourth Proportional to 121,248.43, 167,305.70 and 68,858.62
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Solution
The fourth proportional to 121,248.43, 167,305.70 and 68,858.62 is: 95,015.16
Step by Step Solution
- Step 1: Write the proportion equation
121,248.43 : 167,305.70 = 68,858.62 : x - Step 2: Convert to fraction form
121,248.43/167,305.70 = 68,858.62/x - Step 3: Cross multiply
121,248.43x = 167,305.70 × 68,858.62 - Step 4: Simplify right side
121,248.43x = 11,520,439,694.11 - Step 5: Solve for x
x = 11,520,439,694.11/121,248.43 - Step 6: Final answer
x = 95,015.16
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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.