Finding the Fourth Proportional to 127,119.60, 190,873.80 and 74,631.60
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Solution
The fourth proportional to 127,119.60, 190,873.80 and 74,631.60 is: 112,061.53
Step by Step Solution
- Step 1: Write the proportion equation
127,119.60 : 190,873.80 = 74,631.60 : x - Step 2: Convert to fraction form
127,119.60/190,873.80 = 74,631.60/x - Step 3: Cross multiply
127,119.60x = 190,873.80 × 74,631.60 - Step 4: Simplify right side
127,119.60x = 14,245,217,092.08 - Step 5: Solve for x
x = 14,245,217,092.08/127,119.60 - Step 6: Final answer
x = 112,061.53
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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.