Finding the Fourth Proportional to 117,821.74, 162,589.12 and 64,106.96
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Solution
The fourth proportional to 117,821.74, 162,589.12 and 64,106.96 is: 88,464.95
Step by Step Solution
- Step 1: Write the proportion equation
117,821.74 : 162,589.12 = 64,106.96 : x - Step 2: Convert to fraction form
117,821.74/162,589.12 = 64,106.96/x - Step 3: Cross multiply
117,821.74x = 162,589.12 × 64,106.96 - Step 4: Simplify right side
117,821.74x = 10,423,094,212.28 - Step 5: Solve for x
x = 10,423,094,212.28/117,821.74 - Step 6: Final answer
x = 88,464.95
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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.