Finding the Fourth Proportional to 159,537.38, 220,163.04 and 87,919.96
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Solution
The fourth proportional to 159,537.38, 220,163.04 and 87,919.96 is: 121,330.35
Step by Step Solution
- Step 1: Write the proportion equation
159,537.38 : 220,163.04 = 87,919.96 : x - Step 2: Convert to fraction form
159,537.38/220,163.04 = 87,919.96/x - Step 3: Cross multiply
159,537.38x = 220,163.04 × 87,919.96 - Step 4: Simplify right side
159,537.38x = 19,356,725,670.28 - Step 5: Solve for x
x = 19,356,725,670.28/159,537.38 - Step 6: Final answer
x = 121,330.35
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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.