Finding the Fourth Proportional to 198,102.71, 273,315.26 and 113,159.63
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Solution
The fourth proportional to 198,102.71, 273,315.26 and 113,159.63 is: 156,122.31
Step by Step Solution
- Step 1: Write the proportion equation
198,102.71 : 273,315.26 = 113,159.63 : x - Step 2: Convert to fraction form
198,102.71/273,315.26 = 113,159.63/x - Step 3: Cross multiply
198,102.71x = 273,315.26 × 113,159.63 - Step 4: Simplify right side
198,102.71x = 30,928,253,129.16 - Step 5: Solve for x
x = 30,928,253,129.16/198,102.71 - Step 6: Final answer
x = 156,122.31
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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.