Finding the Fourth Proportional to 127,130.07, 175,504.83 and 89,571.99
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Solution
The fourth proportional to 127,130.07, 175,504.83 and 89,571.99 is: 123,655.38
Step by Step Solution
- Step 1: Write the proportion equation
127,130.07 : 175,504.83 = 89,571.99 : x - Step 2: Convert to fraction form
127,130.07/175,504.83 = 89,571.99/x - Step 3: Cross multiply
127,130.07x = 175,504.83 × 89,571.99 - Step 4: Simplify right side
127,130.07x = 15,720,316,877.71 - Step 5: Solve for x
x = 15,720,316,877.71/127,130.07 - Step 6: Final answer
x = 123,655.38
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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.