Finding the Fourth Proportional to 106,758.87, 147,341.88 and 61,435.92
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Solution
The fourth proportional to 106,758.87, 147,341.88 and 61,435.92 is: 84,789.99
Step by Step Solution
- Step 1: Write the proportion equation
106,758.87 : 147,341.88 = 61,435.92 : x - Step 2: Convert to fraction form
106,758.87/147,341.88 = 61,435.92/x - Step 3: Cross multiply
106,758.87x = 147,341.88 × 61,435.92 - Step 4: Simplify right side
106,758.87x = 9,052,083,952.33 - Step 5: Solve for x
x = 9,052,083,952.33/106,758.87 - Step 6: Final answer
x = 84,789.99
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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.