Finding the Fourth Proportional to 171,105.18, 236,139.75 and 99,480.66
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Solution
The fourth proportional to 171,105.18, 236,139.75 and 99,480.66 is: 137,291.80
Step by Step Solution
- Step 1: Write the proportion equation
171,105.18 : 236,139.75 = 99,480.66 : x - Step 2: Convert to fraction form
171,105.18/236,139.75 = 99,480.66/x - Step 3: Cross multiply
171,105.18x = 236,139.75 × 99,480.66 - Step 4: Simplify right side
171,105.18x = 23,491,338,182.24 - Step 5: Solve for x
x = 23,491,338,182.24/171,105.18 - Step 6: Final answer
x = 137,291.80
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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.