Finding the Fourth Proportional to 153,161.96, 229,742.79 and 47,989.13
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Solution
The fourth proportional to 153,161.96, 229,742.79 and 47,989.13 is: 71,983.65
Step by Step Solution
- Step 1: Write the proportion equation
153,161.96 : 229,742.79 = 47,989.13 : x - Step 2: Convert to fraction form
153,161.96/229,742.79 = 47,989.13/x - Step 3: Cross multiply
153,161.96x = 229,742.79 × 47,989.13 - Step 4: Simplify right side
153,161.96x = 11,025,156,615.87 - Step 5: Solve for x
x = 11,025,156,615.87/153,161.96 - Step 6: Final answer
x = 71,983.65
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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.