Finding the Fourth Proportional to 129,563.08, 193,981.64 and 97,873.45
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Solution
The fourth proportional to 129,563.08, 193,981.64 and 97,873.45 is: 146,535.97
Step by Step Solution
- Step 1: Write the proportion equation
129,563.08 : 193,981.64 = 97,873.45 : x - Step 2: Convert to fraction form
129,563.08/193,981.64 = 97,873.45/x - Step 3: Cross multiply
129,563.08x = 193,981.64 × 97,873.45 - Step 4: Simplify right side
129,563.08x = 18,985,651,369.14 - Step 5: Solve for x
x = 18,985,651,369.14/129,563.08 - Step 6: Final answer
x = 146,535.97
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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.