Finding the Fourth Proportional to 107,405.20, 161,107.80 and 97,563.70
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Solution
The fourth proportional to 107,405.20, 161,107.80 and 97,563.70 is: 146,345.55
Step by Step Solution
- Step 1: Write the proportion equation
107,405.20 : 161,107.80 = 97,563.70 : x - Step 2: Convert to fraction form
107,405.20/161,107.80 = 97,563.70/x - Step 3: Cross multiply
107,405.20x = 161,107.80 × 97,563.70 - Step 4: Simplify right side
107,405.20x = 15,718,273,066.86 - Step 5: Solve for x
x = 15,718,273,066.86/107,405.20 - Step 6: Final answer
x = 146,345.55
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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.