Finding the Fourth Proportional to 159,440.50, 220,019.79 and 87,818.99
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Solution
The fourth proportional to 159,440.50, 220,019.79 and 87,818.99 is: 121,185.74
Step by Step Solution
- Step 1: Write the proportion equation
159,440.50 : 220,019.79 = 87,818.99 : x - Step 2: Convert to fraction form
159,440.50/220,019.79 = 87,818.99/x - Step 3: Cross multiply
159,440.50x = 220,019.79 × 87,818.99 - Step 4: Simplify right side
159,440.50x = 19,321,914,967.03 - Step 5: Solve for x
x = 19,321,914,967.03/159,440.50 - Step 6: Final answer
x = 121,185.74
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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.