Finding the Fourth Proportional to 159,240.62, 219,761.36 and 91,278.65
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Solution
The fourth proportional to 159,240.62, 219,761.36 and 91,278.65 is: 125,969.86
Step by Step Solution
- Step 1: Write the proportion equation
159,240.62 : 219,761.36 = 91,278.65 : x - Step 2: Convert to fraction form
159,240.62/219,761.36 = 91,278.65/x - Step 3: Cross multiply
159,240.62x = 219,761.36 × 91,278.65 - Step 4: Simplify right side
159,240.62x = 20,059,518,707.76 - Step 5: Solve for x
x = 20,059,518,707.76/159,240.62 - Step 6: Final answer
x = 125,969.86
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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.