Finding the Third Proportional to 81,113.94 and 125,921.06
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Solution
The third proportional to 81,113.94 and 125,921.06 is: 195,479.53
Step by Step Solution
- Step 1: Write the proportion equation
81,113.94 : 125,921.06 = 125,921.06 : x - Step 2: Convert to fraction form
81,113.94/125,921.06 = 125,921.06/x - Step 3: Cross multiply
81,113.94x = 125,921.06 × 125,921.06 - Step 4: Simplify right side
81,113.94x = 15,856,113,981.13 - Step 5: Solve for x
x = 15,856,113,981.13/81,113.94 - Step 6: Final answer
x = 195,479.53
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.