Finding the Fourth Proportional to 127,243.61, 175,597.77 and 69,874.55
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Solution
The fourth proportional to 127,243.61, 175,597.77 and 69,874.55 is: 96,427.75
Step by Step Solution
- Step 1: Write the proportion equation
127,243.61 : 175,597.77 = 69,874.55 : x - Step 2: Convert to fraction form
127,243.61/175,597.77 = 69,874.55/x - Step 3: Cross multiply
127,243.61x = 175,597.77 × 69,874.55 - Step 4: Simplify right side
127,243.61x = 12,269,815,202.29 - Step 5: Solve for x
x = 12,269,815,202.29/127,243.61 - Step 6: Final answer
x = 96,427.75
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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.