Finding the Fourth Proportional to 110,021.44, 164,883.12 and 78,787.84
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Solution
The fourth proportional to 110,021.44, 164,883.12 and 78,787.84 is: 118,075.03
Step by Step Solution
- Step 1: Write the proportion equation
110,021.44 : 164,883.12 = 78,787.84 : x - Step 2: Convert to fraction form
110,021.44/164,883.12 = 78,787.84/x - Step 3: Cross multiply
110,021.44x = 164,883.12 × 78,787.84 - Step 4: Simplify right side
110,021.44x = 12,990,784,877.26 - Step 5: Solve for x
x = 12,990,784,877.26/110,021.44 - Step 6: Final answer
x = 118,075.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.