Finding the Fourth Proportional to 159,738.06, 219,920.18 and 125,686.46
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Solution
The fourth proportional to 159,738.06, 219,920.18 and 125,686.46 is: 173,039.47
Step by Step Solution
- Step 1: Write the proportion equation
159,738.06 : 219,920.18 = 125,686.46 : x - Step 2: Convert to fraction form
159,738.06/219,920.18 = 125,686.46/x - Step 3: Cross multiply
159,738.06x = 219,920.18 × 125,686.46 - Step 4: Simplify right side
159,738.06x = 27,640,988,906.76 - Step 5: Solve for x
x = 27,640,988,906.76/159,738.06 - Step 6: Final answer
x = 173,039.47
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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.