Finding the Fourth Proportional to 119,436.13, 164,889.84 and 79,204.21
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Solution
The fourth proportional to 119,436.13, 164,889.84 and 79,204.21 is: 109,346.89
Step by Step Solution
- Step 1: Write the proportion equation
119,436.13 : 164,889.84 = 79,204.21 : x - Step 2: Convert to fraction form
119,436.13/164,889.84 = 79,204.21/x - Step 3: Cross multiply
119,436.13x = 164,889.84 × 79,204.21 - Step 4: Simplify right side
119,436.13x = 13,059,969,399.02 - Step 5: Solve for x
x = 13,059,969,399.02/119,436.13 - Step 6: Final answer
x = 109,346.89
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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.