Finding the Fourth Proportional to 127,145.06, 175,338.25 and 76,149.62
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Solution
The fourth proportional to 127,145.06, 175,338.25 and 76,149.62 is: 105,013.45
Step by Step Solution
- Step 1: Write the proportion equation
127,145.06 : 175,338.25 = 76,149.62 : x - Step 2: Convert to fraction form
127,145.06/175,338.25 = 76,149.62/x - Step 3: Cross multiply
127,145.06x = 175,338.25 × 76,149.62 - Step 4: Simplify right side
127,145.06x = 13,351,941,108.97 - Step 5: Solve for x
x = 13,351,941,108.97/127,145.06 - Step 6: Final answer
x = 105,013.45
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1.5x scale
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.