Finding the Fourth Proportional to 129,593.25, 178,841.42 and 73,004.63
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Solution
The fourth proportional to 129,593.25, 178,841.42 and 73,004.63 is: 100,747.92
Step by Step Solution
- Step 1: Write the proportion equation
129,593.25 : 178,841.42 = 73,004.63 : x - Step 2: Convert to fraction form
129,593.25/178,841.42 = 73,004.63/x - Step 3: Cross multiply
129,593.25x = 178,841.42 × 73,004.63 - Step 4: Simplify right side
129,593.25x = 13,056,250,710.31 - Step 5: Solve for x
x = 13,056,250,710.31/129,593.25 - Step 6: Final answer
x = 100,747.92
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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.