Finding the Fourth Proportional to 124,121.70, 186,183.36 and 84,580.74
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Solution
The fourth proportional to 124,121.70, 186,183.36 and 84,580.74 is: 126,871.66
Step by Step Solution
- Step 1: Write the proportion equation
124,121.70 : 186,183.36 = 84,580.74 : x - Step 2: Convert to fraction form
124,121.70/186,183.36 = 84,580.74/x - Step 3: Cross multiply
124,121.70x = 186,183.36 × 84,580.74 - Step 4: Simplify right side
124,121.70x = 15,747,526,364.49 - Step 5: Solve for x
x = 15,747,526,364.49/124,121.70 - Step 6: Final answer
x = 126,871.66
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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.