Finding the Fourth Proportional to 103,672.05, 155,409.56 and 40,532.65
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Solution
The fourth proportional to 103,672.05, 155,409.56 and 40,532.65 is: 60,760.46
Step by Step Solution
- Step 1: Write the proportion equation
103,672.05 : 155,409.56 = 40,532.65 : x - Step 2: Convert to fraction form
103,672.05/155,409.56 = 40,532.65/x - Step 3: Cross multiply
103,672.05x = 155,409.56 × 40,532.65 - Step 4: Simplify right side
103,672.05x = 6,299,161,302.13 - Step 5: Solve for x
x = 6,299,161,302.13/103,672.05 - Step 6: Final answer
x = 60,760.46
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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.