Finding the Fourth Proportional to 121,218.33, 167,438.97 and 92,362.08
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Solution
The fourth proportional to 121,218.33, 167,438.97 and 92,362.08 is: 127,579.81
Step by Step Solution
- Step 1: Write the proportion equation
121,218.33 : 167,438.97 = 92,362.08 : x - Step 2: Convert to fraction form
121,218.33/167,438.97 = 92,362.08/x - Step 3: Cross multiply
121,218.33x = 167,438.97 × 92,362.08 - Step 4: Simplify right side
121,218.33x = 15,465,011,542.26 - Step 5: Solve for x
x = 15,465,011,542.26/121,218.33 - Step 6: Final answer
x = 127,579.81
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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.