Finding the Fourth Proportional to 121,589.36, 167,863.12 and 92,682.08
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Solution
The fourth proportional to 121,589.36, 167,863.12 and 92,682.08 is: 127,954.48
Step by Step Solution
- Step 1: Write the proportion equation
121,589.36 : 167,863.12 = 92,682.08 : x - Step 2: Convert to fraction form
121,589.36/167,863.12 = 92,682.08/x - Step 3: Cross multiply
121,589.36x = 167,863.12 × 92,682.08 - Step 4: Simplify right side
121,589.36x = 15,557,903,116.89 - Step 5: Solve for x
x = 15,557,903,116.89/121,589.36 - Step 6: Final answer
x = 127,954.48
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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.