Finding the Fourth Proportional to 103,668.05, 155,403.56 and 40,528.65
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Solution
The fourth proportional to 103,668.05, 155,403.56 and 40,528.65 is: 60,754.46
Step by Step Solution
- Step 1: Write the proportion equation
103,668.05 : 155,403.56 = 40,528.65 : x - Step 2: Convert to fraction form
103,668.05/155,403.56 = 40,528.65/x - Step 3: Cross multiply
103,668.05x = 155,403.56 × 40,528.65 - Step 4: Simplify right side
103,668.05x = 6,298,296,491.99 - Step 5: Solve for x
x = 6,298,296,491.99/103,668.05 - Step 6: Final answer
x = 60,754.46
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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.