Finding the Fourth Proportional to 147,803.09, 203,968.53 and 80,735.09
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Solution
The fourth proportional to 147,803.09, 203,968.53 and 80,735.09 is: 111,414.57
Step by Step Solution
- Step 1: Write the proportion equation
147,803.09 : 203,968.53 = 80,735.09 : x - Step 2: Convert to fraction form
147,803.09/203,968.53 = 80,735.09/x - Step 3: Cross multiply
147,803.09x = 203,968.53 × 80,735.09 - Step 4: Simplify right side
147,803.09x = 16,467,416,606.88 - Step 5: Solve for x
x = 16,467,416,606.88/147,803.09 - Step 6: Final answer
x = 111,414.57
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1.5x scale
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.