Finding the Fourth Proportional to 125,424.91, 188,135.45 and 86,920.88
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Solution
The fourth proportional to 125,424.91, 188,135.45 and 86,920.88 is: 130,380.00
Step by Step Solution
- Step 1: Write the proportion equation
125,424.91 : 188,135.45 = 86,920.88 : x - Step 2: Convert to fraction form
125,424.91/188,135.45 = 86,920.88/x - Step 3: Cross multiply
125,424.91x = 188,135.45 × 86,920.88 - Step 4: Simplify right side
125,424.91x = 16,352,899,560.84 - Step 5: Solve for x
x = 16,352,899,560.84/125,424.91 - Step 6: Final answer
x = 130,380.00
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1.5x scale
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.