Finding the Fourth Proportional to 127,355.66, 175,747.11 and 72,905.99
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Solution
The fourth proportional to 127,355.66, 175,747.11 and 72,905.99 is: 100,608.15
Step by Step Solution
- Step 1: Write the proportion equation
127,355.66 : 175,747.11 = 72,905.99 : x - Step 2: Convert to fraction form
127,355.66/175,747.11 = 72,905.99/x - Step 3: Cross multiply
127,355.66x = 175,747.11 × 72,905.99 - Step 4: Simplify right side
127,355.66x = 12,813,016,880.63 - Step 5: Solve for x
x = 12,813,016,880.63/127,355.66 - Step 6: Final answer
x = 100,608.15
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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.