Finding the Fourth Proportional to 113,343.12, 169,903.74 and 42,213.54
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Solution
The fourth proportional to 113,343.12, 169,903.74 and 42,213.54 is: 63,278.99
Step by Step Solution
- Step 1: Write the proportion equation
113,343.12 : 169,903.74 = 42,213.54 : x - Step 2: Convert to fraction form
113,343.12/169,903.74 = 42,213.54/x - Step 3: Cross multiply
113,343.12x = 169,903.74 × 42,213.54 - Step 4: Simplify right side
113,343.12x = 7,172,238,324.64 - Step 5: Solve for x
x = 7,172,238,324.64/113,343.12 - Step 6: Final answer
x = 63,278.99
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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.