Finding the Fourth Proportional to 135,207.70, 202,816.61 and 40,439.12
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Solution
The fourth proportional to 135,207.70, 202,816.61 and 40,439.12 is: 60,660.19
Step by Step Solution
- Step 1: Write the proportion equation
135,207.70 : 202,816.61 = 40,439.12 : x - Step 2: Convert to fraction form
135,207.70/202,816.61 = 40,439.12/x - Step 3: Cross multiply
135,207.70x = 202,816.61 × 40,439.12 - Step 4: Simplify right side
135,207.70x = 8,201,724,165.15 - Step 5: Solve for x
x = 8,201,724,165.15/135,207.70 - Step 6: Final answer
x = 60,660.19
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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.