Finding the Fourth Proportional to 111,306.69, 153,626.42 and 102,339.99
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Solution
The fourth proportional to 111,306.69, 153,626.42 and 102,339.99 is: 141,250.51
Step by Step Solution
- Step 1: Write the proportion equation
111,306.69 : 153,626.42 = 102,339.99 : x - Step 2: Convert to fraction form
111,306.69/153,626.42 = 102,339.99/x - Step 3: Cross multiply
111,306.69x = 153,626.42 × 102,339.99 - Step 4: Simplify right side
111,306.69x = 15,722,126,286.54 - Step 5: Solve for x
x = 15,722,126,286.54/111,306.69 - Step 6: Final answer
x = 141,250.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.