Finding the Fourth Proportional to 121,454.26, 167,621.50 and 71,153.26
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Solution
The fourth proportional to 121,454.26, 167,621.50 and 71,153.26 is: 98,200.06
Step by Step Solution
- Step 1: Write the proportion equation
121,454.26 : 167,621.50 = 71,153.26 : x - Step 2: Convert to fraction form
121,454.26/167,621.50 = 71,153.26/x - Step 3: Cross multiply
121,454.26x = 167,621.50 × 71,153.26 - Step 4: Simplify right side
121,454.26x = 11,926,816,171.09 - Step 5: Solve for x
x = 11,926,816,171.09/121,454.26 - Step 6: Final answer
x = 98,200.06
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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.