Finding the Fourth Proportional to 121,432.02, 167,576.92 and 67,720.44
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Solution
The fourth proportional to 121,432.02, 167,576.92 and 67,720.44 is: 93,454.62
Step by Step Solution
- Step 1: Write the proportion equation
121,432.02 : 167,576.92 = 67,720.44 : x - Step 2: Convert to fraction form
121,432.02/167,576.92 = 67,720.44/x - Step 3: Cross multiply
121,432.02x = 167,576.92 × 67,720.44 - Step 4: Simplify right side
121,432.02x = 11,348,382,756.24 - Step 5: Solve for x
x = 11,348,382,756.24/121,432.02 - Step 6: Final answer
x = 93,454.62
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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.