Finding the Fourth Proportional to 127,712.08, 191,568.12 and 43,480.99
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Solution
The fourth proportional to 127,712.08, 191,568.12 and 43,480.99 is: 65,221.49
Step by Step Solution
- Step 1: Write the proportion equation
127,712.08 : 191,568.12 = 43,480.99 : x - Step 2: Convert to fraction form
127,712.08/191,568.12 = 43,480.99/x - Step 3: Cross multiply
127,712.08x = 191,568.12 × 43,480.99 - Step 4: Simplify right side
127,712.08x = 8,329,571,510.04 - Step 5: Solve for x
x = 8,329,571,510.04/127,712.08 - Step 6: Final answer
x = 65,221.49
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Double scale
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Similar ratio
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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.