Finding the Fourth Proportional to 111,229.79, 153,497.57 and 60,243.12
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Solution
The fourth proportional to 111,229.79, 153,497.57 and 60,243.12 is: 83,135.75
Step by Step Solution
- Step 1: Write the proportion equation
111,229.79 : 153,497.57 = 60,243.12 : x - Step 2: Convert to fraction form
111,229.79/153,497.57 = 60,243.12/x - Step 3: Cross multiply
111,229.79x = 153,497.57 × 60,243.12 - Step 4: Simplify right side
111,229.79x = 9,247,172,529.22 - Step 5: Solve for x
x = 9,247,172,529.22/111,229.79 - Step 6: Final answer
x = 83,135.75
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1.5x scale
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.