Finding the Fourth Proportional to 159,137.23, 219,604.35 and 87,517.03
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Solution
The fourth proportional to 159,137.23, 219,604.35 and 87,517.03 is: 120,770.74
Step by Step Solution
- Step 1: Write the proportion equation
159,137.23 : 219,604.35 = 87,517.03 : x - Step 2: Convert to fraction form
159,137.23/219,604.35 = 87,517.03/x - Step 3: Cross multiply
159,137.23x = 219,604.35 × 87,517.03 - Step 4: Simplify right side
159,137.23x = 19,219,120,487.08 - Step 5: Solve for x
x = 19,219,120,487.08/159,137.23 - Step 6: Final answer
x = 120,770.74
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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.