Finding the Fourth Proportional to 125,633.80, 188,450.70 and 51,761.80
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Solution
The fourth proportional to 125,633.80, 188,450.70 and 51,761.80 is: 77,642.70
Step by Step Solution
- Step 1: Write the proportion equation
125,633.80 : 188,450.70 = 51,761.80 : x - Step 2: Convert to fraction form
125,633.80/188,450.70 = 51,761.80/x - Step 3: Cross multiply
125,633.80x = 188,450.70 × 51,761.80 - Step 4: Simplify right side
125,633.80x = 9,754,547,443.26 - Step 5: Solve for x
x = 9,754,547,443.26/125,633.80 - Step 6: Final answer
x = 77,642.70
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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.