Finding the Fourth Proportional to 121,111.13, 167,133.36 and 68,119.13
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Solution
The fourth proportional to 121,111.13, 167,133.36 and 68,119.13 is: 94,004.40
Step by Step Solution
- Step 1: Write the proportion equation
121,111.13 : 167,133.36 = 68,119.13 : x - Step 2: Convert to fraction form
121,111.13/167,133.36 = 68,119.13/x - Step 3: Cross multiply
121,111.13x = 167,133.36 × 68,119.13 - Step 4: Simplify right side
121,111.13x = 11,384,978,241.51 - Step 5: Solve for x
x = 11,384,978,241.51/121,111.13 - Step 6: Final answer
x = 94,004.40
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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.