Finding the Fourth Proportional to 106,190.36, 159,313.12 and 39,630.99
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Solution
The fourth proportional to 106,190.36, 159,313.12 and 39,630.99 is: 59,456.78
Step by Step Solution
- Step 1: Write the proportion equation
106,190.36 : 159,313.12 = 39,630.99 : x - Step 2: Convert to fraction form
106,190.36/159,313.12 = 39,630.99/x - Step 3: Cross multiply
106,190.36x = 159,313.12 × 39,630.99 - Step 4: Simplify right side
106,190.36x = 6,313,736,566.51 - Step 5: Solve for x
x = 6,313,736,566.51/106,190.36 - Step 6: Final answer
x = 59,456.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.