Finding the Fourth Proportional to 106,900.92, 147,538.84 and 61,570.08
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Solution
The fourth proportional to 106,900.92, 147,538.84 and 61,570.08 is: 84,975.68
Step by Step Solution
- Step 1: Write the proportion equation
106,900.92 : 147,538.84 = 61,570.08 : x - Step 2: Convert to fraction form
106,900.92/147,538.84 = 61,570.08/x - Step 3: Cross multiply
106,900.92x = 147,538.84 × 61,570.08 - Step 4: Simplify right side
106,900.92x = 9,083,978,181.91 - Step 5: Solve for x
x = 9,083,978,181.91/106,900.92 - Step 6: Final answer
x = 84,975.68
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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.