Finding the Fourth Proportional to 140,922.06, 194,482.26 and 77,263.97
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Solution
The fourth proportional to 140,922.06, 194,482.26 and 77,263.97 is: 106,629.65
Step by Step Solution
- Step 1: Write the proportion equation
140,922.06 : 194,482.26 = 77,263.97 : x - Step 2: Convert to fraction form
140,922.06/194,482.26 = 77,263.97/x - Step 3: Cross multiply
140,922.06x = 194,482.26 × 77,263.97 - Step 4: Simplify right side
140,922.06x = 15,026,470,529.76 - Step 5: Solve for x
x = 15,026,470,529.76/140,922.06 - Step 6: Final answer
x = 106,629.65
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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.