Finding the Fourth Proportional to 121,102.11, 167,101.65 and 67,386.96
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Solution
The fourth proportional to 121,102.11, 167,101.65 and 67,386.96 is: 92,983.29
Step by Step Solution
- Step 1: Write the proportion equation
121,102.11 : 167,101.65 = 67,386.96 : x - Step 2: Convert to fraction form
121,102.11/167,101.65 = 67,386.96/x - Step 3: Cross multiply
121,102.11x = 167,101.65 × 67,386.96 - Step 4: Simplify right side
121,102.11x = 11,260,472,204.48 - Step 5: Solve for x
x = 11,260,472,204.48/121,102.11 - Step 6: Final answer
x = 92,983.29
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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.