Finding the Fourth Proportional to 167,818.28, 251,815.18 and 67,989.08
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Solution
The fourth proportional to 167,818.28, 251,815.18 and 67,989.08 is: 102,019.17
Step by Step Solution
- Step 1: Write the proportion equation
167,818.28 : 251,815.18 = 67,989.08 : x - Step 2: Convert to fraction form
167,818.28/251,815.18 = 67,989.08/x - Step 3: Cross multiply
167,818.28x = 251,815.18 × 67,989.08 - Step 4: Simplify right side
167,818.28x = 17,120,682,418.23 - Step 5: Solve for x
x = 17,120,682,418.23/167,818.28 - Step 6: Final answer
x = 102,019.17
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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.