Finding the Fourth Proportional to 125,199.74, 172,775.79 and 68,611.26
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Solution
The fourth proportional to 125,199.74, 172,775.79 and 68,611.26 is: 94,683.62
Step by Step Solution
- Step 1: Write the proportion equation
125,199.74 : 172,775.79 = 68,611.26 : x - Step 2: Convert to fraction form
125,199.74/172,775.79 = 68,611.26/x - Step 3: Cross multiply
125,199.74x = 172,775.79 × 68,611.26 - Step 4: Simplify right side
125,199.74x = 11,854,364,649.40 - Step 5: Solve for x
x = 11,854,364,649.40/125,199.74 - Step 6: Final answer
x = 94,683.62
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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.