Finding the Fourth Proportional to 122,276.10, 168,669.37 and 76,882.15
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Solution
The fourth proportional to 122,276.10, 168,669.37 and 76,882.15 is: 106,052.32
Step by Step Solution
- Step 1: Write the proportion equation
122,276.10 : 168,669.37 = 76,882.15 : x - Step 2: Convert to fraction form
122,276.10/168,669.37 = 76,882.15/x - Step 3: Cross multiply
122,276.10x = 168,669.37 × 76,882.15 - Step 4: Simplify right side
122,276.10x = 12,967,663,804.75 - Step 5: Solve for x
x = 12,967,663,804.75/122,276.10 - Step 6: Final answer
x = 106,052.32
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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.