Finding the Fourth Proportional to 159,121.64, 219,593.26 and 87,504.68
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Solution
The fourth proportional to 159,121.64, 219,593.26 and 87,504.68 is: 120,759.43
Step by Step Solution
- Step 1: Write the proportion equation
159,121.64 : 219,593.26 = 87,504.68 : x - Step 2: Convert to fraction form
159,121.64/219,593.26 = 87,504.68/x - Step 3: Cross multiply
159,121.64x = 219,593.26 × 87,504.68 - Step 4: Simplify right side
159,121.64x = 19,215,437,946.46 - Step 5: Solve for x
x = 19,215,437,946.46/159,121.64 - Step 6: Final answer
x = 120,759.43
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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.