Finding the Fourth Proportional to 103,695.10, 155,657.85 and 64,296.70
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Solution
The fourth proportional to 103,695.10, 155,657.85 and 64,296.70 is: 96,516.48
Step by Step Solution
- Step 1: Write the proportion equation
103,695.10 : 155,657.85 = 64,296.70 : x - Step 2: Convert to fraction form
103,695.10/155,657.85 = 64,296.70/x - Step 3: Cross multiply
103,695.10x = 155,657.85 × 64,296.70 - Step 4: Simplify right side
103,695.10x = 10,008,286,084.10 - Step 5: Solve for x
x = 10,008,286,084.10/103,695.10 - Step 6: Final answer
x = 96,516.48
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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.