Finding the Fourth Proportional to 111,922.08, 154,454.24 and 61,621.08
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Solution
The fourth proportional to 111,922.08, 154,454.24 and 61,621.08 is: 85,038.06
Step by Step Solution
- Step 1: Write the proportion equation
111,922.08 : 154,454.24 = 61,621.08 : x - Step 2: Convert to fraction form
111,922.08/154,454.24 = 61,621.08/x - Step 3: Cross multiply
111,922.08x = 154,454.24 × 61,621.08 - Step 4: Simplify right side
111,922.08x = 9,517,637,079.38 - Step 5: Solve for x
x = 9,517,637,079.38/111,922.08 - Step 6: Final answer
x = 85,038.06
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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.