Finding the Fourth Proportional to 111,201.55, 153,524.36 and 68,817.49
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Solution
The fourth proportional to 111,201.55, 153,524.36 and 68,817.49 is: 95,009.12
Step by Step Solution
- Step 1: Write the proportion equation
111,201.55 : 153,524.36 = 68,817.49 : x - Step 2: Convert to fraction form
111,201.55/153,524.36 = 68,817.49/x - Step 3: Cross multiply
111,201.55x = 153,524.36 × 68,817.49 - Step 4: Simplify right side
111,201.55x = 10,565,160,897.29 - Step 5: Solve for x
x = 10,565,160,897.29/111,201.55 - Step 6: Final answer
x = 95,009.12
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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.