Finding the Fourth Proportional to 159,891.89, 239,963.12 and 111,546.09
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Solution
The fourth proportional to 159,891.89, 239,963.12 and 111,546.09 is: 167,406.55
Step by Step Solution
- Step 1: Write the proportion equation
159,891.89 : 239,963.12 = 111,546.09 : x - Step 2: Convert to fraction form
159,891.89/239,963.12 = 111,546.09/x - Step 3: Cross multiply
159,891.89x = 239,963.12 × 111,546.09 - Step 4: Simplify right side
159,891.89x = 26,766,948,059.07 - Step 5: Solve for x
x = 26,766,948,059.07/159,891.89 - Step 6: Final answer
x = 167,406.55
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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.