Finding the Fourth Proportional to 115,502.80, 173,108.40 and 84,301.60
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Solution
The fourth proportional to 115,502.80, 173,108.40 and 84,301.60 is: 126,345.99
Step by Step Solution
- Step 1: Write the proportion equation
115,502.80 : 173,108.40 = 84,301.60 : x - Step 2: Convert to fraction form
115,502.80/173,108.40 = 84,301.60/x - Step 3: Cross multiply
115,502.80x = 173,108.40 × 84,301.60 - Step 4: Simplify right side
115,502.80x = 14,593,315,093.44 - Step 5: Solve for x
x = 14,593,315,093.44/115,502.80 - Step 6: Final answer
x = 126,345.99
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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.