Finding the Fourth Proportional to 121,636.94, 167,937.96 and 108,867.98
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Solution
The fourth proportional to 121,636.94, 167,937.96 and 108,867.98 is: 150,308.50
Step by Step Solution
- Step 1: Write the proportion equation
121,636.94 : 167,937.96 = 108,867.98 : x - Step 2: Convert to fraction form
121,636.94/167,937.96 = 108,867.98/x - Step 3: Cross multiply
121,636.94x = 167,937.96 × 108,867.98 - Step 4: Simplify right side
121,636.94x = 18,283,065,086.49 - Step 5: Solve for x
x = 18,283,065,086.49/121,636.94 - Step 6: Final answer
x = 150,308.50
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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.