Finding the Fourth Proportional to 127,380.36, 191,122.38 and 57,292.68
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Solution
The fourth proportional to 127,380.36, 191,122.38 and 57,292.68 is: 85,962.34
Step by Step Solution
- Step 1: Write the proportion equation
127,380.36 : 191,122.38 = 57,292.68 : x - Step 2: Convert to fraction form
127,380.36/191,122.38 = 57,292.68/x - Step 3: Cross multiply
127,380.36x = 191,122.38 × 57,292.68 - Step 4: Simplify right side
127,380.36x = 10,949,913,358.18 - Step 5: Solve for x
x = 10,949,913,358.18/127,380.36 - Step 6: Final answer
x = 85,962.34
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1.5x scale
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.