Finding the Fourth Proportional to 122,838.58, 169,504.17 and 69,122.66
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Solution
The fourth proportional to 122,838.58, 169,504.17 and 69,122.66 is: 95,381.92
Step by Step Solution
- Step 1: Write the proportion equation
122,838.58 : 169,504.17 = 69,122.66 : x - Step 2: Convert to fraction form
122,838.58/169,504.17 = 69,122.66/x - Step 3: Cross multiply
122,838.58x = 169,504.17 × 69,122.66 - Step 4: Simplify right side
122,838.58x = 11,716,579,111.49 - Step 5: Solve for x
x = 11,716,579,111.49/122,838.58 - Step 6: Final answer
x = 95,381.92
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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.