Finding the Fourth Proportional to 125,881.92, 189,511.95 and 114,859.44
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Solution
The fourth proportional to 125,881.92, 189,511.95 and 114,859.44 is: 172,917.89
Step by Step Solution
- Step 1: Write the proportion equation
125,881.92 : 189,511.95 = 114,859.44 : x - Step 2: Convert to fraction form
125,881.92/189,511.95 = 114,859.44/x - Step 3: Cross multiply
125,881.92x = 189,511.95 × 114,859.44 - Step 4: Simplify right side
125,881.92x = 21,767,236,450.31 - Step 5: Solve for x
x = 21,767,236,450.31/125,881.92 - Step 6: Final answer
x = 172,917.89
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.