Finding the Fourth Proportional to 121,515.40, 182,273.10 and 114,626.35
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Solution
The fourth proportional to 121,515.40, 182,273.10 and 114,626.35 is: 171,939.53
Step by Step Solution
- Step 1: Write the proportion equation
121,515.40 : 182,273.10 = 114,626.35 : x - Step 2: Convert to fraction form
121,515.40/182,273.10 = 114,626.35/x - Step 3: Cross multiply
121,515.40x = 182,273.10 × 114,626.35 - Step 4: Simplify right side
121,515.40x = 20,893,300,156.19 - Step 5: Solve for x
x = 20,893,300,156.19/121,515.40 - Step 6: Final answer
x = 171,939.53
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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.