Finding the Fourth Proportional to 104,716.20, 157,074.30 and 75,191.70
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Solution
The fourth proportional to 104,716.20, 157,074.30 and 75,191.70 is: 112,787.55
Step by Step Solution
- Step 1: Write the proportion equation
104,716.20 : 157,074.30 = 75,191.70 : x - Step 2: Convert to fraction form
104,716.20/157,074.30 = 75,191.70/x - Step 3: Cross multiply
104,716.20x = 157,074.30 × 75,191.70 - Step 4: Simplify right side
104,716.20x = 11,810,683,643.31 - Step 5: Solve for x
x = 11,810,683,643.31/104,716.20 - Step 6: Final answer
x = 112,787.55
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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.