Finding the Fourth Proportional to 159,184.11, 219,669.39 and 87,564.09
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Solution
The fourth proportional to 159,184.11, 219,669.39 and 87,564.09 is: 120,835.87
Step by Step Solution
- Step 1: Write the proportion equation
159,184.11 : 219,669.39 = 87,564.09 : x - Step 2: Convert to fraction form
159,184.11/219,669.39 = 87,564.09/x - Step 3: Cross multiply
159,184.11x = 219,669.39 × 87,564.09 - Step 4: Simplify right side
159,184.11x = 19,235,150,236.21 - Step 5: Solve for x
x = 19,235,150,236.21/159,184.11 - Step 6: Final answer
x = 120,835.87
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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.