Finding the Fourth Proportional to 125,599.20, 188,398.80 and 106,572.30
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Solution
The fourth proportional to 125,599.20, 188,398.80 and 106,572.30 is: 159,858.45
Step by Step Solution
- Step 1: Write the proportion equation
125,599.20 : 188,398.80 = 106,572.30 : x - Step 2: Convert to fraction form
125,599.20/188,398.80 = 106,572.30/x - Step 3: Cross multiply
125,599.20x = 188,398.80 × 106,572.30 - Step 4: Simplify right side
125,599.20x = 20,078,093,433.24 - Step 5: Solve for x
x = 20,078,093,433.24/125,599.20 - Step 6: Final answer
x = 159,858.45
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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.