Finding the Fourth Proportional to 159,212.18, 219,712.50 and 87,592.05
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Solution
The fourth proportional to 159,212.18, 219,712.50 and 87,592.05 is: 120,876.86
Step by Step Solution
- Step 1: Write the proportion equation
159,212.18 : 219,712.50 = 87,592.05 : x - Step 2: Convert to fraction form
159,212.18/219,712.50 = 87,592.05/x - Step 3: Cross multiply
159,212.18x = 219,712.50 × 87,592.05 - Step 4: Simplify right side
159,212.18x = 19,245,068,285.63 - Step 5: Solve for x
x = 19,245,068,285.63/159,212.18 - Step 6: Final answer
x = 120,876.86
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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.