Finding the Fourth Proportional to 159,503.11, 220,124.09 and 87,883.11
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Solution
The fourth proportional to 159,503.11, 220,124.09 and 87,883.11 is: 121,284.09
Step by Step Solution
- Step 1: Write the proportion equation
159,503.11 : 220,124.09 = 87,883.11 : x - Step 2: Convert to fraction form
159,503.11/220,124.09 = 87,883.11/x - Step 3: Cross multiply
159,503.11x = 220,124.09 × 87,883.11 - Step 4: Simplify right side
159,503.11x = 19,345,189,834.83 - Step 5: Solve for x
x = 19,345,189,834.83/159,503.11 - Step 6: Final answer
x = 121,284.09
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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.