Finding the Fourth Proportional to 159,086.36, 219,539.97 and 87,470.96
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Solution
The fourth proportional to 159,086.36, 219,539.97 and 87,470.96 is: 120,710.35
Step by Step Solution
- Step 1: Write the proportion equation
159,086.36 : 219,539.97 = 87,470.96 : x - Step 2: Convert to fraction form
159,086.36/219,539.97 = 87,470.96/x - Step 3: Cross multiply
159,086.36x = 219,539.97 × 87,470.96 - Step 4: Simplify right side
159,086.36x = 19,203,370,836.57 - Step 5: Solve for x
x = 19,203,370,836.57/159,086.36 - Step 6: Final answer
x = 120,710.35
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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.