Finding the Fourth Proportional to 136,881.24, 188,892.24 and 76,450.08
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Solution
The fourth proportional to 136,881.24, 188,892.24 and 76,450.08 is: 105,498.95
Step by Step Solution
- Step 1: Write the proportion equation
136,881.24 : 188,892.24 = 76,450.08 : x - Step 2: Convert to fraction form
136,881.24/188,892.24 = 76,450.08/x - Step 3: Cross multiply
136,881.24x = 188,892.24 × 76,450.08 - Step 4: Simplify right side
136,881.24x = 14,440,826,859.38 - Step 5: Solve for x
x = 14,440,826,859.38/136,881.24 - Step 6: Final answer
x = 105,498.95
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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.