Finding the Fourth Proportional to 159,364.24, 219,920.88 and 87,742.78
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Solution
The fourth proportional to 159,364.24, 219,920.88 and 87,742.78 is: 121,084.06
Step by Step Solution
- Step 1: Write the proportion equation
159,364.24 : 219,920.88 = 87,742.78 : x - Step 2: Convert to fraction form
159,364.24/219,920.88 = 87,742.78/x - Step 3: Cross multiply
159,364.24x = 219,920.88 × 87,742.78 - Step 4: Simplify right side
159,364.24x = 19,296,469,391.25 - Step 5: Solve for x
x = 19,296,469,391.25/159,364.24 - Step 6: Final answer
x = 121,084.06
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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.