Finding the Fourth Proportional to 189,572.73, 261,608.27 and 104,688.09
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Solution
The fourth proportional to 189,572.73, 261,608.27 and 104,688.09 is: 144,468.40
Step by Step Solution
- Step 1: Write the proportion equation
189,572.73 : 261,608.27 = 104,688.09 : x - Step 2: Convert to fraction form
189,572.73/261,608.27 = 104,688.09/x - Step 3: Cross multiply
189,572.73x = 261,608.27 × 104,688.09 - Step 4: Simplify right side
189,572.73x = 27,387,269,591.06 - Step 5: Solve for x
x = 27,387,269,591.06/189,572.73 - Step 6: Final answer
x = 144,468.40
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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.