Finding the Fourth Proportional to 127,445.34, 190,905.49 and 74,727.70
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Solution
The fourth proportional to 127,445.34, 190,905.49 and 74,727.70 is: 111,937.62
Step by Step Solution
- Step 1: Write the proportion equation
127,445.34 : 190,905.49 = 74,727.70 : x - Step 2: Convert to fraction form
127,445.34/190,905.49 = 74,727.70/x - Step 3: Cross multiply
127,445.34x = 190,905.49 × 74,727.70 - Step 4: Simplify right side
127,445.34x = 14,265,928,185.07 - Step 5: Solve for x
x = 14,265,928,185.07/127,445.34 - Step 6: Final answer
x = 111,937.62
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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.