Finding the Fourth Proportional to 113,549.08, 170,411.10 and 91,416.68
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Solution
The fourth proportional to 113,549.08, 170,411.10 and 91,416.68 is: 137,195.45
Step by Step Solution
- Step 1: Write the proportion equation
113,549.08 : 170,411.10 = 91,416.68 : x - Step 2: Convert to fraction form
113,549.08/170,411.10 = 91,416.68/x - Step 3: Cross multiply
113,549.08x = 170,411.10 × 91,416.68 - Step 4: Simplify right side
113,549.08x = 15,578,416,997.15 - Step 5: Solve for x
x = 15,578,416,997.15/113,549.08 - Step 6: Final answer
x = 137,195.45
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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.