Finding the Fourth Proportional to 170,791.84, 235,676.16 and 117,122.88
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Solution
The fourth proportional to 170,791.84, 235,676.16 and 117,122.88 is: 161,618.20
Step by Step Solution
- Step 1: Write the proportion equation
170,791.84 : 235,676.16 = 117,122.88 : x - Step 2: Convert to fraction form
170,791.84/235,676.16 = 117,122.88/x - Step 3: Cross multiply
170,791.84x = 235,676.16 × 117,122.88 - Step 4: Simplify right side
170,791.84x = 27,603,070,606.54 - Step 5: Solve for x
x = 27,603,070,606.54/170,791.84 - Step 6: Final answer
x = 161,618.20
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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.