Finding the Fourth Proportional to 107,022.42, 147,676.92 and 61,702.08
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Solution
The fourth proportional to 107,022.42, 147,676.92 and 61,702.08 is: 85,140.79
Step by Step Solution
- Step 1: Write the proportion equation
107,022.42 : 147,676.92 = 61,702.08 : x - Step 2: Convert to fraction form
107,022.42/147,676.92 = 61,702.08/x - Step 3: Cross multiply
107,022.42x = 147,676.92 × 61,702.08 - Step 4: Simplify right side
107,022.42x = 9,111,973,131.99 - Step 5: Solve for x
x = 9,111,973,131.99/107,022.42 - Step 6: Final answer
x = 85,140.79
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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.