Finding the Fourth Proportional to 121,647.18, 167,836.42 and 70,650.08
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Solution
The fourth proportional to 121,647.18, 167,836.42 and 70,650.08 is: 97,475.80
Step by Step Solution
- Step 1: Write the proportion equation
121,647.18 : 167,836.42 = 70,650.08 : x - Step 2: Convert to fraction form
121,647.18/167,836.42 = 70,650.08/x - Step 3: Cross multiply
121,647.18x = 167,836.42 × 70,650.08 - Step 4: Simplify right side
121,647.18x = 11,857,656,499.91 - Step 5: Solve for x
x = 11,857,656,499.91/121,647.18 - Step 6: Final answer
x = 97,475.80
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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.