Finding the Fourth Proportional to 111,564.09, 153,953.87 and 60,574.84
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Solution
The fourth proportional to 111,564.09, 153,953.87 and 60,574.84 is: 83,590.80
Step by Step Solution
- Step 1: Write the proportion equation
111,564.09 : 153,953.87 = 60,574.84 : x - Step 2: Convert to fraction form
111,564.09/153,953.87 = 60,574.84/x - Step 3: Cross multiply
111,564.09x = 153,953.87 × 60,574.84 - Step 4: Simplify right side
111,564.09x = 9,325,731,042.63 - Step 5: Solve for x
x = 9,325,731,042.63/111,564.09 - Step 6: Final answer
x = 83,590.80
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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.