Finding the Fourth Proportional to 112,043.25, 154,622.99 and 61,745.49
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Solution
The fourth proportional to 112,043.25, 154,622.99 and 61,745.49 is: 85,210.59
Step by Step Solution
- Step 1: Write the proportion equation
112,043.25 : 154,622.99 = 61,745.49 : x - Step 2: Convert to fraction form
112,043.25/154,622.99 = 61,745.49/x - Step 3: Cross multiply
112,043.25x = 154,622.99 × 61,745.49 - Step 4: Simplify right side
112,043.25x = 9,547,271,974.09 - Step 5: Solve for x
x = 9,547,271,974.09/112,043.25 - Step 6: Final answer
x = 85,210.59
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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.