Finding the Fourth Proportional to 111,246.44, 153,397.12 and 85,696.08
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Solution
The fourth proportional to 111,246.44, 153,397.12 and 85,696.08 is: 118,165.87
Step by Step Solution
- Step 1: Write the proportion equation
111,246.44 : 153,397.12 = 85,696.08 : x - Step 2: Convert to fraction form
111,246.44/153,397.12 = 85,696.08/x - Step 3: Cross multiply
111,246.44x = 153,397.12 × 85,696.08 - Step 4: Simplify right side
111,246.44x = 13,145,531,867.29 - Step 5: Solve for x
x = 13,145,531,867.29/111,246.44 - Step 6: Final answer
x = 118,165.87
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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.