Finding the Fourth Proportional to 189,688.26, 261,775.08 and 104,810.79
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Solution
The fourth proportional to 189,688.26, 261,775.08 and 104,810.79 is: 144,641.81
Step by Step Solution
- Step 1: Write the proportion equation
189,688.26 : 261,775.08 = 104,810.79 : x - Step 2: Convert to fraction form
189,688.26/261,775.08 = 104,810.79/x - Step 3: Cross multiply
189,688.26x = 261,775.08 × 104,810.79 - Step 4: Simplify right side
189,688.26x = 27,436,852,937.11 - Step 5: Solve for x
x = 27,436,852,937.11/189,688.26 - Step 6: Final answer
x = 144,641.81
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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.