Finding the Fourth Proportional to 189,694.42, 261,777.76 and 104,810.88
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Solution
The fourth proportional to 189,694.42, 261,777.76 and 104,810.88 is: 144,638.72
Step by Step Solution
- Step 1: Write the proportion equation
189,694.42 : 261,777.76 = 104,810.88 : x - Step 2: Convert to fraction form
189,694.42/261,777.76 = 104,810.88/x - Step 3: Cross multiply
189,694.42x = 261,777.76 × 104,810.88 - Step 4: Simplify right side
189,694.42x = 27,437,157,390.03 - Step 5: Solve for x
x = 27,437,157,390.03/189,694.42 - Step 6: Final answer
x = 144,638.72
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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.