Finding the Fourth Proportional to 103,486.05, 155,199.09 and 40,292.10
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Solution
The fourth proportional to 103,486.05, 155,199.09 and 40,292.10 is: 60,426.48
Step by Step Solution
- Step 1: Write the proportion equation
103,486.05 : 155,199.09 = 40,292.10 : x - Step 2: Convert to fraction form
103,486.05/155,199.09 = 40,292.10/x - Step 3: Cross multiply
103,486.05x = 155,199.09 × 40,292.10 - Step 4: Simplify right side
103,486.05x = 6,253,297,254.19 - Step 5: Solve for x
x = 6,253,297,254.19/103,486.05 - Step 6: Final answer
x = 60,426.48
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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.