Finding the Fourth Proportional to 84,208.45, 125,696.12 and 74,244.19
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Solution
The fourth proportional to 84,208.45, 125,696.12 and 74,244.19 is: 110,822.69
Step by Step Solution
- Step 1: Write the proportion equation
84,208.45 : 125,696.12 = 74,244.19 : x - Step 2: Convert to fraction form
84,208.45/125,696.12 = 74,244.19/x - Step 3: Cross multiply
84,208.45x = 125,696.12 × 74,244.19 - Step 4: Simplify right side
84,208.45x = 9,332,206,615.54 - Step 5: Solve for x
x = 9,332,206,615.54/84,208.45 - Step 6: Final answer
x = 110,822.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.