Finding the Fourth Proportional to 189,224.68, 261,129.90 and 104,347.12
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Solution
The fourth proportional to 189,224.68, 261,129.90 and 104,347.12 is: 143,998.94
Step by Step Solution
- Step 1: Write the proportion equation
189,224.68 : 261,129.90 = 104,347.12 : x - Step 2: Convert to fraction form
189,224.68/261,129.90 = 104,347.12/x - Step 3: Cross multiply
189,224.68x = 261,129.90 × 104,347.12 - Step 4: Simplify right side
189,224.68x = 27,248,153,010.89 - Step 5: Solve for x
x = 27,248,153,010.89/189,224.68 - Step 6: Final answer
x = 143,998.94
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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.