Finding the Fourth Proportional to 127,040.49, 175,314.68 and 69,678.65
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Solution
The fourth proportional to 127,040.49, 175,314.68 and 69,678.65 is: 96,155.88
Step by Step Solution
- Step 1: Write the proportion equation
127,040.49 : 175,314.68 = 69,678.65 : x - Step 2: Convert to fraction form
127,040.49/175,314.68 = 69,678.65/x - Step 3: Cross multiply
127,040.49x = 175,314.68 × 69,678.65 - Step 4: Simplify right side
127,040.49x = 12,215,689,525.21 - Step 5: Solve for x
x = 12,215,689,525.21/127,040.49 - Step 6: Final answer
x = 96,155.88
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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.