Finding the Fourth Proportional to 135,005.80, 202,119.90 and 82,517.80
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Solution
The fourth proportional to 135,005.80, 202,119.90 and 82,517.80 is: 123,539.06
Step by Step Solution
- Step 1: Write the proportion equation
135,005.80 : 202,119.90 = 82,517.80 : x - Step 2: Convert to fraction form
135,005.80/202,119.90 = 82,517.80/x - Step 3: Cross multiply
135,005.80x = 202,119.90 × 82,517.80 - Step 4: Simplify right side
135,005.80x = 16,678,489,484.22 - Step 5: Solve for x
x = 16,678,489,484.22/135,005.80 - Step 6: Final answer
x = 123,539.06
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1.5x scale
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.