Finding the Fourth Proportional to 189,693.42, 261,776.39 and 104,809.88
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Solution
The fourth proportional to 189,693.42, 261,776.39 and 104,809.88 is: 144,637.33
Step by Step Solution
- Step 1: Write the proportion equation
189,693.42 : 261,776.39 = 104,809.88 : x - Step 2: Convert to fraction form
189,693.42/261,776.39 = 104,809.88/x - Step 3: Cross multiply
189,693.42x = 261,776.39 × 104,809.88 - Step 4: Simplify right side
189,693.42x = 27,436,750,189.80 - Step 5: Solve for x
x = 27,436,750,189.80/189,693.42 - Step 6: Final answer
x = 144,637.33
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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.