Finding the Fourth Proportional to 125,371.20, 173,011.68 and 68,781.36
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Solution
The fourth proportional to 125,371.20, 173,011.68 and 68,781.36 is: 94,917.96
Step by Step Solution
- Step 1: Write the proportion equation
125,371.20 : 173,011.68 = 68,781.36 : x - Step 2: Convert to fraction form
125,371.20/173,011.68 = 68,781.36/x - Step 3: Cross multiply
125,371.20x = 173,011.68 × 68,781.36 - Step 4: Simplify right side
125,371.20x = 11,899,978,646.28 - Step 5: Solve for x
x = 11,899,978,646.28/125,371.20 - Step 6: Final answer
x = 94,917.96
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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.