Finding the Fourth Proportional to 111,592.09, 153,998.18 and 61,291.09
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Solution
The fourth proportional to 111,592.09, 153,998.18 and 61,291.09 is: 84,582.31
Step by Step Solution
- Step 1: Write the proportion equation
111,592.09 : 153,998.18 = 61,291.09 : x - Step 2: Convert to fraction form
111,592.09/153,998.18 = 61,291.09/x - Step 3: Cross multiply
111,592.09x = 153,998.18 × 61,291.09 - Step 4: Simplify right side
111,592.09x = 9,438,716,310.22 - Step 5: Solve for x
x = 9,438,716,310.22/111,592.09 - Step 6: Final answer
x = 84,582.31
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1.5x scale
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.