Finding the Fourth Proportional to 122,283.73, 168,680.05 and 76,889.84
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Solution
The fourth proportional to 122,283.73, 168,680.05 and 76,889.84 is: 106,063.02
Step by Step Solution
- Step 1: Write the proportion equation
122,283.73 : 168,680.05 = 76,889.84 : x - Step 2: Convert to fraction form
122,283.73/168,680.05 = 76,889.84/x - Step 3: Cross multiply
122,283.73x = 168,680.05 × 76,889.84 - Step 4: Simplify right side
122,283.73x = 12,969,781,671.24 - Step 5: Solve for x
x = 12,969,781,671.24/122,283.73 - Step 6: Final answer
x = 106,063.02
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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.