Finding the Fourth Proportional to 162,493.10, 243,649.58 and 66,497.74
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Solution
The fourth proportional to 162,493.10, 243,649.58 and 66,497.74 is: 99,709.75
Step by Step Solution
- Step 1: Write the proportion equation
162,493.10 : 243,649.58 = 66,497.74 : x - Step 2: Convert to fraction form
162,493.10/243,649.58 = 66,497.74/x - Step 3: Cross multiply
162,493.10x = 243,649.58 × 66,497.74 - Step 4: Simplify right side
162,493.10x = 16,202,146,421.95 - Step 5: Solve for x
x = 16,202,146,421.95/162,493.10 - Step 6: Final answer
x = 99,709.75
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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.