Finding the Fourth Proportional to 159,215.58, 219,717.49 and 87,594.07
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Solution
The fourth proportional to 159,215.58, 219,717.49 and 87,594.07 is: 120,879.80
Step by Step Solution
- Step 1: Write the proportion equation
159,215.58 : 219,717.49 = 87,594.07 : x - Step 2: Convert to fraction form
159,215.58/219,717.49 = 87,594.07/x - Step 3: Cross multiply
159,215.58x = 219,717.49 × 87,594.07 - Step 4: Simplify right side
159,215.58x = 19,245,948,100.70 - Step 5: Solve for x
x = 19,245,948,100.70/159,215.58 - Step 6: Final answer
x = 120,879.80
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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.