Finding the Fourth Proportional to 171,886.24, 257,836.26 and 81,882.68
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Solution
The fourth proportional to 171,886.24, 257,836.26 and 81,882.68 is: 122,827.31
Step by Step Solution
- Step 1: Write the proportion equation
171,886.24 : 257,836.26 = 81,882.68 : x - Step 2: Convert to fraction form
171,886.24/257,836.26 = 81,882.68/x - Step 3: Cross multiply
171,886.24x = 257,836.26 × 81,882.68 - Step 4: Simplify right side
171,886.24x = 21,112,323,969.98 - Step 5: Solve for x
x = 21,112,323,969.98/171,886.24 - Step 6: Final answer
x = 122,827.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.