Finding the Fourth Proportional to 135,121.14, 202,710.70 and 40,358.80
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Solution
The fourth proportional to 135,121.14, 202,710.70 and 40,358.80 is: 60,546.86
Step by Step Solution
- Step 1: Write the proportion equation
135,121.14 : 202,710.70 = 40,358.80 : x - Step 2: Convert to fraction form
135,121.14/202,710.70 = 40,358.80/x - Step 3: Cross multiply
135,121.14x = 202,710.70 × 40,358.80 - Step 4: Simplify right side
135,121.14x = 8,181,160,599.16 - Step 5: Solve for x
x = 8,181,160,599.16/135,121.14 - Step 6: Final answer
x = 60,546.86
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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.