Finding the Fourth Proportional to 125,776.53, 173,649.06 and 86,553.09
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Solution
The fourth proportional to 125,776.53, 173,649.06 and 86,553.09 is: 119,496.56
Step by Step Solution
- Step 1: Write the proportion equation
125,776.53 : 173,649.06 = 86,553.09 : x - Step 2: Convert to fraction form
125,776.53/173,649.06 = 86,553.09/x - Step 3: Cross multiply
125,776.53x = 173,649.06 × 86,553.09 - Step 4: Simplify right side
125,776.53x = 15,029,862,718.60 - Step 5: Solve for x
x = 15,029,862,718.60/125,776.53 - Step 6: Final answer
x = 119,496.56
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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.