Finding the Fourth Proportional to 84,862.99, 127,278.08 and 80,648.15
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Solution
The fourth proportional to 84,862.99, 127,278.08 and 80,648.15 is: 120,956.64
Step by Step Solution
- Step 1: Write the proportion equation
84,862.99 : 127,278.08 = 80,648.15 : x - Step 2: Convert to fraction form
84,862.99/127,278.08 = 80,648.15/x - Step 3: Cross multiply
84,862.99x = 127,278.08 × 80,648.15 - Step 4: Simplify right side
84,862.99x = 10,264,741,284.31 - Step 5: Solve for x
x = 10,264,741,284.31/84,862.99 - Step 6: Final answer
x = 120,956.64
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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.