Finding the Fourth Proportional to 135,201.24, 202,985.70 and 76,078.44
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Solution
The fourth proportional to 135,201.24, 202,985.70 and 76,078.44 is: 114,221.11
Step by Step Solution
- Step 1: Write the proportion equation
135,201.24 : 202,985.70 = 76,078.44 : x - Step 2: Convert to fraction form
135,201.24/202,985.70 = 76,078.44/x - Step 3: Cross multiply
135,201.24x = 202,985.70 × 76,078.44 - Step 4: Simplify right side
135,201.24x = 15,442,835,398.31 - Step 5: Solve for x
x = 15,442,835,398.31/135,201.24 - Step 6: Final answer
x = 114,221.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.