Finding the Fourth Proportional to 127,128.75, 175,437.68 and 70,549.23
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Solution
The fourth proportional to 127,128.75, 175,437.68 and 70,549.23 is: 97,357.94
Step by Step Solution
- Step 1: Write the proportion equation
127,128.75 : 175,437.68 = 70,549.23 : x - Step 2: Convert to fraction form
127,128.75/175,437.68 = 70,549.23/x - Step 3: Cross multiply
127,128.75x = 175,437.68 × 70,549.23 - Step 4: Simplify right side
127,128.75x = 12,376,992,884.24 - Step 5: Solve for x
x = 12,376,992,884.24/127,128.75 - Step 6: Final answer
x = 97,357.94
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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.