Finding the Fourth Proportional to 108,939.24, 150,339.78 and 61,201.08
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Solution
The fourth proportional to 108,939.24, 150,339.78 and 61,201.08 is: 84,459.53
Step by Step Solution
- Step 1: Write the proportion equation
108,939.24 : 150,339.78 = 61,201.08 : x - Step 2: Convert to fraction form
108,939.24/150,339.78 = 61,201.08/x - Step 3: Cross multiply
108,939.24x = 150,339.78 × 61,201.08 - Step 4: Simplify right side
108,939.24x = 9,200,956,902.96 - Step 5: Solve for x
x = 9,200,956,902.96/108,939.24 - Step 6: Final answer
x = 84,459.53
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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.