Finding the Fourth Proportional to 124,562.20, 186,843.30 and 121,281.70
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Solution
The fourth proportional to 124,562.20, 186,843.30 and 121,281.70 is: 181,922.55
Step by Step Solution
- Step 1: Write the proportion equation
124,562.20 : 186,843.30 = 121,281.70 : x - Step 2: Convert to fraction form
124,562.20/186,843.30 = 121,281.70/x - Step 3: Cross multiply
124,562.20x = 186,843.30 × 121,281.70 - Step 4: Simplify right side
124,562.20x = 22,660,673,057.61 - Step 5: Solve for x
x = 22,660,673,057.61/124,562.20 - Step 6: Final answer
x = 181,922.55
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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.