Finding the Fourth Proportional to 150,757.32, 208,029.69 and 87,115.62
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Solution
The fourth proportional to 150,757.32, 208,029.69 and 87,115.62 is: 120,210.65
Step by Step Solution
- Step 1: Write the proportion equation
150,757.32 : 208,029.69 = 87,115.62 : x - Step 2: Convert to fraction form
150,757.32/208,029.69 = 87,115.62/x - Step 3: Cross multiply
150,757.32x = 208,029.69 × 87,115.62 - Step 4: Simplify right side
150,757.32x = 18,122,635,422.76 - Step 5: Solve for x
x = 18,122,635,422.76/150,757.32 - Step 6: Final answer
x = 120,210.65
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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.