Finding the Fourth Proportional to 159,969.70, 239,608.95 and 132,321.70
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Solution
The fourth proportional to 159,969.70, 239,608.95 and 132,321.70 is: 198,196.68
Step by Step Solution
- Step 1: Write the proportion equation
159,969.70 : 239,608.95 = 132,321.70 : x - Step 2: Convert to fraction form
159,969.70/239,608.95 = 132,321.70/x - Step 3: Cross multiply
159,969.70x = 239,608.95 × 132,321.70 - Step 4: Simplify right side
159,969.70x = 31,705,463,599.22 - Step 5: Solve for x
x = 31,705,463,599.22/159,969.70 - Step 6: Final answer
x = 198,196.68
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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.