Finding the Fourth Proportional to 111,468.75, 153,826.88 and 61,170.99
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Solution
The fourth proportional to 111,468.75, 153,826.88 and 61,170.99 is: 84,415.97
Step by Step Solution
- Step 1: Write the proportion equation
111,468.75 : 153,826.88 = 61,170.99 : x - Step 2: Convert to fraction form
111,468.75/153,826.88 = 61,170.99/x - Step 3: Cross multiply
111,468.75x = 153,826.88 × 61,170.99 - Step 4: Simplify right side
111,468.75x = 9,409,742,232.36 - Step 5: Solve for x
x = 9,409,742,232.36/111,468.75 - Step 6: Final answer
x = 84,415.97
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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.