Finding the Fourth Proportional to 178,783.49, 246,618.08 and 107,121.99
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Solution
The fourth proportional to 178,783.49, 246,618.08 and 107,121.99 is: 147,766.55
Step by Step Solution
- Step 1: Write the proportion equation
178,783.49 : 246,618.08 = 107,121.99 : x - Step 2: Convert to fraction form
178,783.49/246,618.08 = 107,121.99/x - Step 3: Cross multiply
178,783.49x = 246,618.08 × 107,121.99 - Step 4: Simplify right side
178,783.49x = 26,418,220,441.13 - Step 5: Solve for x
x = 26,418,220,441.13/178,783.49 - Step 6: Final answer
x = 147,766.55
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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.