Finding the Fourth Proportional to 159,171.21, 219,652.70 and 87,549.66
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Solution
The fourth proportional to 159,171.21, 219,652.70 and 87,549.66 is: 120,816.56
Step by Step Solution
- Step 1: Write the proportion equation
159,171.21 : 219,652.70 = 87,549.66 : x - Step 2: Convert to fraction form
159,171.21/219,652.70 = 87,549.66/x - Step 3: Cross multiply
159,171.21x = 219,652.70 × 87,549.66 - Step 4: Simplify right side
159,171.21x = 19,230,518,765.33 - Step 5: Solve for x
x = 19,230,518,765.33/159,171.21 - Step 6: Final answer
x = 120,816.56
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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.