Finding the Fourth Proportional to 127,126.76, 175,439.99 and 69,768.09
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Solution
The fourth proportional to 127,126.76, 175,439.99 and 69,768.09 is: 96,282.75
Step by Step Solution
- Step 1: Write the proportion equation
127,126.76 : 175,439.99 = 69,768.09 : x - Step 2: Convert to fraction form
127,126.76/175,439.99 = 69,768.09/x - Step 3: Cross multiply
127,126.76x = 175,439.99 × 69,768.09 - Step 4: Simplify right side
127,126.76x = 12,240,113,186.34 - Step 5: Solve for x
x = 12,240,113,186.34/127,126.76 - Step 6: Final answer
x = 96,282.75
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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.