Finding the Fourth Proportional to 106,415.97, 159,640.35 and 36,278.88
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Solution
The fourth proportional to 106,415.97, 159,640.35 and 36,278.88 is: 54,423.91
Step by Step Solution
- Step 1: Write the proportion equation
106,415.97 : 159,640.35 = 36,278.88 : x - Step 2: Convert to fraction form
106,415.97/159,640.35 = 36,278.88/x - Step 3: Cross multiply
106,415.97x = 159,640.35 × 36,278.88 - Step 4: Simplify right side
106,415.97x = 5,791,573,100.81 - Step 5: Solve for x
x = 5,791,573,100.81/106,415.97 - Step 6: Final answer
x = 54,423.91
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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.