Finding the Fourth Proportional to 121,185.18, 167,235.84 and 67,467.60
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Solution
The fourth proportional to 121,185.18, 167,235.84 and 67,467.60 is: 93,105.45
Step by Step Solution
- Step 1: Write the proportion equation
121,185.18 : 167,235.84 = 67,467.60 : x - Step 2: Convert to fraction form
121,185.18/167,235.84 = 67,467.60/x - Step 3: Cross multiply
121,185.18x = 167,235.84 × 67,467.60 - Step 4: Simplify right side
121,185.18x = 11,283,000,758.78 - Step 5: Solve for x
x = 11,283,000,758.78/121,185.18 - Step 6: Final answer
x = 93,105.45
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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.