Finding the Fourth Proportional to 135,919.10, 203,911.05 and 65,740.70
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Solution
The fourth proportional to 135,919.10, 203,911.05 and 65,740.70 is: 98,626.72
Step by Step Solution
- Step 1: Write the proportion equation
135,919.10 : 203,911.05 = 65,740.70 : x - Step 2: Convert to fraction form
135,919.10/203,911.05 = 65,740.70/x - Step 3: Cross multiply
135,919.10x = 203,911.05 × 65,740.70 - Step 4: Simplify right side
135,919.10x = 13,405,255,164.74 - Step 5: Solve for x
x = 13,405,255,164.74/135,919.10 - Step 6: Final answer
x = 98,626.72
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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.