Finding the Fourth Proportional to 159,243.17, 219,730.49 and 91,247.06
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Solution
The fourth proportional to 159,243.17, 219,730.49 and 91,247.06 is: 125,906.56
Step by Step Solution
- Step 1: Write the proportion equation
159,243.17 : 219,730.49 = 91,247.06 : x - Step 2: Convert to fraction form
159,243.17/219,730.49 = 91,247.06/x - Step 3: Cross multiply
159,243.17x = 219,730.49 × 91,247.06 - Step 4: Simplify right side
159,243.17x = 20,049,759,649.97 - Step 5: Solve for x
x = 20,049,759,649.97/159,243.17 - Step 6: Final answer
x = 125,906.56
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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.