Finding the Fourth Proportional to 189,686.26, 261,772.35 and 104,808.82
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Solution
The fourth proportional to 189,686.26, 261,772.35 and 104,808.82 is: 144,639.11
Step by Step Solution
- Step 1: Write the proportion equation
189,686.26 : 261,772.35 = 104,808.82 : x - Step 2: Convert to fraction form
189,686.26/261,772.35 = 104,808.82/x - Step 3: Cross multiply
189,686.26x = 261,772.35 × 104,808.82 - Step 4: Simplify right side
189,686.26x = 27,436,051,112.13 - Step 5: Solve for x
x = 27,436,051,112.13/189,686.26 - Step 6: Final answer
x = 144,639.11
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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.