Finding the Fourth Proportional to 111,197.81, 153,453.26 and 60,211.14
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Solution
The fourth proportional to 111,197.81, 153,453.26 and 60,211.14 is: 83,091.53
Step by Step Solution
- Step 1: Write the proportion equation
111,197.81 : 153,453.26 = 60,211.14 : x - Step 2: Convert to fraction form
111,197.81/153,453.26 = 60,211.14/x - Step 3: Cross multiply
111,197.81x = 153,453.26 × 60,211.14 - Step 4: Simplify right side
111,197.81x = 9,239,595,420.26 - Step 5: Solve for x
x = 9,239,595,420.26/111,197.81 - Step 6: Final answer
x = 83,091.53
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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.