Finding the Fourth Proportional to 136,479.38, 188,347.37 and 76,050.09
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Solution
The fourth proportional to 136,479.38, 188,347.37 and 76,050.09 is: 104,952.37
Step by Step Solution
- Step 1: Write the proportion equation
136,479.38 : 188,347.37 = 76,050.09 : x - Step 2: Convert to fraction form
136,479.38/188,347.37 = 76,050.09/x - Step 3: Cross multiply
136,479.38x = 188,347.37 × 76,050.09 - Step 4: Simplify right side
136,479.38x = 14,323,834,059.51 - Step 5: Solve for x
x = 14,323,834,059.51/136,479.38 - Step 6: Final answer
x = 104,952.37
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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.