Finding the Fourth Proportional to 121,238.36, 167,309.12 and 70,260.87
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Solution
The fourth proportional to 121,238.36, 167,309.12 and 70,260.87 is: 96,960.11
Step by Step Solution
- Step 1: Write the proportion equation
121,238.36 : 167,309.12 = 70,260.87 : x - Step 2: Convert to fraction form
121,238.36/167,309.12 = 70,260.87/x - Step 3: Cross multiply
121,238.36x = 167,309.12 × 70,260.87 - Step 4: Simplify right side
121,238.36x = 11,755,284,330.13 - Step 5: Solve for x
x = 11,755,284,330.13/121,238.36 - Step 6: Final answer
x = 96,960.11
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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.