Finding the Fourth Proportional to 135,949.48, 204,079.74 and 128,173.48
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Solution
The fourth proportional to 135,949.48, 204,079.74 and 128,173.48 is: 192,406.84
Step by Step Solution
- Step 1: Write the proportion equation
135,949.48 : 204,079.74 = 128,173.48 : x - Step 2: Convert to fraction form
135,949.48/204,079.74 = 128,173.48/x - Step 3: Cross multiply
135,949.48x = 204,079.74 × 128,173.48 - Step 4: Simplify right side
135,949.48x = 26,157,610,473.30 - Step 5: Solve for x
x = 26,157,610,473.30/135,949.48 - Step 6: Final answer
x = 192,406.84
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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.