Finding the Fourth Proportional to 159,708.09, 220,341.45 and 102,378.99
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Solution
The fourth proportional to 159,708.09, 220,341.45 and 102,378.99 is: 141,247.29
Step by Step Solution
- Step 1: Write the proportion equation
159,708.09 : 220,341.45 = 102,378.99 : x - Step 2: Convert to fraction form
159,708.09/220,341.45 = 102,378.99/x - Step 3: Cross multiply
159,708.09x = 220,341.45 × 102,378.99 - Step 4: Simplify right side
159,708.09x = 22,558,335,106.14 - Step 5: Solve for x
x = 22,558,335,106.14/159,708.09 - Step 6: Final answer
x = 141,247.29
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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.