Finding the Fourth Proportional to 189,176.89, 261,065.90 and 104,296.99
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Solution
The fourth proportional to 189,176.89, 261,065.90 and 104,296.99 is: 143,930.83
Step by Step Solution
- Step 1: Write the proportion equation
189,176.89 : 261,065.90 = 104,296.99 : x - Step 2: Convert to fraction form
189,176.89/261,065.90 = 104,296.99/x - Step 3: Cross multiply
189,176.89x = 261,065.90 × 104,296.99 - Step 4: Simplify right side
189,176.89x = 27,228,387,561.64 - Step 5: Solve for x
x = 27,228,387,561.64/189,176.89 - Step 6: Final answer
x = 143,930.83
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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.