Finding the Fourth Proportional to 173,661.18, 239,571.99 and 102,039.90
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Solution
The fourth proportional to 173,661.18, 239,571.99 and 102,039.90 is: 140,767.80
Step by Step Solution
- Step 1: Write the proportion equation
173,661.18 : 239,571.99 = 102,039.90 : x - Step 2: Convert to fraction form
173,661.18/239,571.99 = 102,039.90/x - Step 3: Cross multiply
173,661.18x = 239,571.99 × 102,039.90 - Step 4: Simplify right side
173,661.18x = 24,445,901,902.40 - Step 5: Solve for x
x = 24,445,901,902.40/173,661.18 - Step 6: Final answer
x = 140,767.80
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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.