Finding the Fourth Proportional to 103,497.10, 155,245.65 and 68,067.70
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Solution
The fourth proportional to 103,497.10, 155,245.65 and 68,067.70 is: 102,101.55
Step by Step Solution
- Step 1: Write the proportion equation
103,497.10 : 155,245.65 = 68,067.70 : x - Step 2: Convert to fraction form
103,497.10/155,245.65 = 68,067.70/x - Step 3: Cross multiply
103,497.10x = 155,245.65 × 68,067.70 - Step 4: Simplify right side
103,497.10x = 10,567,214,330.51 - Step 5: Solve for x
x = 10,567,214,330.51/103,497.10 - Step 6: Final answer
x = 102,101.55
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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.