Finding the Fourth Proportional to 178,423.68, 246,206.88 and 102,996.48
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Solution
The fourth proportional to 178,423.68, 246,206.88 and 102,996.48 is: 142,124.87
Step by Step Solution
- Step 1: Write the proportion equation
178,423.68 : 246,206.88 = 102,996.48 : x - Step 2: Convert to fraction form
178,423.68/246,206.88 = 102,996.48/x - Step 3: Cross multiply
178,423.68x = 246,206.88 × 102,996.48 - Step 4: Simplify right side
178,423.68x = 25,358,441,991.78 - Step 5: Solve for x
x = 25,358,441,991.78/178,423.68 - Step 6: Final answer
x = 142,124.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.