Finding the Fourth Proportional to 140,441.84, 193,787.34 and 80,013.68
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Solution
The fourth proportional to 140,441.84, 193,787.34 and 80,013.68 is: 110,406.12
Step by Step Solution
- Step 1: Write the proportion equation
140,441.84 : 193,787.34 = 80,013.68 : x - Step 2: Convert to fraction form
140,441.84/193,787.34 = 80,013.68/x - Step 3: Cross multiply
140,441.84x = 193,787.34 × 80,013.68 - Step 4: Simplify right side
140,441.84x = 15,505,638,210.81 - Step 5: Solve for x
x = 15,505,638,210.81/140,441.84 - Step 6: Final answer
x = 110,406.12
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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.