Finding the Fourth Proportional to 91,223.97, 125,976.02 and 86,254.08
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Solution
The fourth proportional to 91,223.97, 125,976.02 and 86,254.08 is: 119,112.84
Step by Step Solution
- Step 1: Write the proportion equation
91,223.97 : 125,976.02 = 86,254.08 : x - Step 2: Convert to fraction form
91,223.97/125,976.02 = 86,254.08/x - Step 3: Cross multiply
91,223.97x = 125,976.02 × 86,254.08 - Step 4: Simplify right side
91,223.97x = 10,865,945,707.16 - Step 5: Solve for x
x = 10,865,945,707.16/91,223.97 - Step 6: Final answer
x = 119,112.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.