Finding the Fourth Proportional to 121,519.50, 167,703.39 and 71,234.70
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Solution
The fourth proportional to 121,519.50, 167,703.39 and 71,234.70 is: 98,307.68
Step by Step Solution
- Step 1: Write the proportion equation
121,519.50 : 167,703.39 = 71,234.70 : x - Step 2: Convert to fraction form
121,519.50/167,703.39 = 71,234.70/x - Step 3: Cross multiply
121,519.50x = 167,703.39 × 71,234.70 - Step 4: Simplify right side
121,519.50x = 11,946,300,675.63 - Step 5: Solve for x
x = 11,946,300,675.63/121,519.50 - Step 6: Final answer
x = 98,307.68
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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.