Finding the Fourth Proportional to 135,695.70, 203,543.55 and 65,711.70
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Solution
The fourth proportional to 135,695.70, 203,543.55 and 65,711.70 is: 98,567.55
Step by Step Solution
- Step 1: Write the proportion equation
135,695.70 : 203,543.55 = 65,711.70 : x - Step 2: Convert to fraction form
135,695.70/203,543.55 = 65,711.70/x - Step 3: Cross multiply
135,695.70x = 203,543.55 × 65,711.70 - Step 4: Simplify right side
135,695.70x = 13,375,192,694.54 - Step 5: Solve for x
x = 13,375,192,694.54/135,695.70 - Step 6: Final answer
x = 98,567.55
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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.