Finding the Fourth Proportional to 159,330.51, 219,874.91 and 87,711.75
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Solution
The fourth proportional to 159,330.51, 219,874.91 and 87,711.75 is: 121,041.56
Step by Step Solution
- Step 1: Write the proportion equation
159,330.51 : 219,874.91 = 87,711.75 : x - Step 2: Convert to fraction form
159,330.51/219,874.91 = 87,711.75/x - Step 3: Cross multiply
159,330.51x = 219,874.91 × 87,711.75 - Step 4: Simplify right side
159,330.51x = 19,285,612,698.63 - Step 5: Solve for x
x = 19,285,612,698.63/159,330.51 - Step 6: Final answer
x = 121,041.56
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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.