Finding the Fourth Proportional to 159,040.21, 219,475.98 and 87,427.57
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Solution
The fourth proportional to 159,040.21, 219,475.98 and 87,427.57 is: 120,650.32
Step by Step Solution
- Step 1: Write the proportion equation
159,040.21 : 219,475.98 = 87,427.57 : x - Step 2: Convert to fraction form
159,040.21/219,475.98 = 87,427.57/x - Step 3: Cross multiply
159,040.21x = 219,475.98 × 87,427.57 - Step 4: Simplify right side
159,040.21x = 19,188,251,604.77 - Step 5: Solve for x
x = 19,188,251,604.77/159,040.21 - Step 6: Final answer
x = 120,650.32
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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.