Finding the Fourth Proportional to 111,555.36, 153,946.08 and 66,843.36
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Solution
The fourth proportional to 111,555.36, 153,946.08 and 66,843.36 is: 92,243.65
Step by Step Solution
- Step 1: Write the proportion equation
111,555.36 : 153,946.08 = 66,843.36 : x - Step 2: Convert to fraction form
111,555.36/153,946.08 = 66,843.36/x - Step 3: Cross multiply
111,555.36x = 153,946.08 × 66,843.36 - Step 4: Simplify right side
111,555.36x = 10,290,273,246.03 - Step 5: Solve for x
x = 10,290,273,246.03/111,555.36 - Step 6: Final answer
x = 92,243.65
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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.