Finding the Fourth Proportional to 159,758.97, 220,468.11 and 88,138.96
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Solution
The fourth proportional to 159,758.97, 220,468.11 and 88,138.96 is: 121,632.17
Step by Step Solution
- Step 1: Write the proportion equation
159,758.97 : 220,468.11 = 88,138.96 : x - Step 2: Convert to fraction form
159,758.97/220,468.11 = 88,138.96/x - Step 3: Cross multiply
159,758.97x = 220,468.11 × 88,138.96 - Step 4: Simplify right side
159,758.97x = 19,431,829,928.57 - Step 5: Solve for x
x = 19,431,829,928.57/159,758.97 - Step 6: Final answer
x = 121,632.17
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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.