Finding the Fourth Proportional to 160,212.09, 221,093.83 and 87,615.31
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Solution
The fourth proportional to 160,212.09, 221,093.83 and 87,615.31 is: 120,909.75
Step by Step Solution
- Step 1: Write the proportion equation
160,212.09 : 221,093.83 = 87,615.31 : x - Step 2: Convert to fraction form
160,212.09/221,093.83 = 87,615.31/x - Step 3: Cross multiply
160,212.09x = 221,093.83 × 87,615.31 - Step 4: Simplify right side
160,212.09x = 19,371,204,454.54 - Step 5: Solve for x
x = 19,371,204,454.54/160,212.09 - Step 6: Final answer
x = 120,909.75
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1.5x scale
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.