Finding the Fourth Proportional to 141,615.10, 195,405.97 and 81,174.63
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Solution
The fourth proportional to 141,615.10, 195,405.97 and 81,174.63 is: 112,007.88
Step by Step Solution
- Step 1: Write the proportion equation
141,615.10 : 195,405.97 = 81,174.63 : x - Step 2: Convert to fraction form
141,615.10/195,405.97 = 81,174.63/x - Step 3: Cross multiply
141,615.10x = 195,405.97 × 81,174.63 - Step 4: Simplify right side
141,615.10x = 15,862,007,314.54 - Step 5: Solve for x
x = 15,862,007,314.54/141,615.10 - Step 6: Final answer
x = 112,007.88
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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.