Finding the Fourth Proportional to 127,198.52, 175,547.92 and 72,755.80
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Solution
The fourth proportional to 127,198.52, 175,547.92 and 72,755.80 is: 100,410.99
Step by Step Solution
- Step 1: Write the proportion equation
127,198.52 : 175,547.92 = 72,755.80 : x - Step 2: Convert to fraction form
127,198.52/175,547.92 = 72,755.80/x - Step 3: Cross multiply
127,198.52x = 175,547.92 × 72,755.80 - Step 4: Simplify right side
127,198.52x = 12,772,129,357.94 - Step 5: Solve for x
x = 12,772,129,357.94/127,198.52 - Step 6: Final answer
x = 100,410.99
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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.