Finding the Fourth Proportional to 125,231.97, 187,858.65 and 69,110.82
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Solution
The fourth proportional to 125,231.97, 187,858.65 and 69,110.82 is: 103,672.12
Step by Step Solution
- Step 1: Write the proportion equation
125,231.97 : 187,858.65 = 69,110.82 : x - Step 2: Convert to fraction form
125,231.97/187,858.65 = 69,110.82/x - Step 3: Cross multiply
125,231.97x = 187,858.65 × 69,110.82 - Step 4: Simplify right side
125,231.97x = 12,983,064,406.30 - Step 5: Solve for x
x = 12,983,064,406.30/125,231.97 - Step 6: Final answer
x = 103,672.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.