Finding the Fourth Proportional to 121,193.61, 167,245.18 and 70,901.13
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Solution
The fourth proportional to 121,193.61, 167,245.18 and 70,901.13 is: 97,842.39
Step by Step Solution
- Step 1: Write the proportion equation
121,193.61 : 167,245.18 = 70,901.13 : x - Step 2: Convert to fraction form
121,193.61/167,245.18 = 70,901.13/x - Step 3: Cross multiply
121,193.61x = 167,245.18 × 70,901.13 - Step 4: Simplify right side
121,193.61x = 11,857,872,249.05 - Step 5: Solve for x
x = 11,857,872,249.05/121,193.61 - Step 6: Final answer
x = 97,842.39
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1.5x scale
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.