Finding the Fourth Proportional to 117,402.68, 176,097.54 and 85,845.08
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Solution
The fourth proportional to 117,402.68, 176,097.54 and 85,845.08 is: 128,762.88
Step by Step Solution
- Step 1: Write the proportion equation
117,402.68 : 176,097.54 = 85,845.08 : x - Step 2: Convert to fraction form
117,402.68/176,097.54 = 85,845.08/x - Step 3: Cross multiply
117,402.68x = 176,097.54 × 85,845.08 - Step 4: Simplify right side
117,402.68x = 15,117,107,409.10 - Step 5: Solve for x
x = 15,117,107,409.10/117,402.68 - Step 6: Final answer
x = 128,762.88
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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.