Finding the Fourth Proportional to 117,251.70, 175,877.55 and 104,785.80
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Solution
The fourth proportional to 117,251.70, 175,877.55 and 104,785.80 is: 157,178.70
Step by Step Solution
- Step 1: Write the proportion equation
117,251.70 : 175,877.55 = 104,785.80 : x - Step 2: Convert to fraction form
117,251.70/175,877.55 = 104,785.80/x - Step 3: Cross multiply
117,251.70x = 175,877.55 × 104,785.80 - Step 4: Simplify right side
117,251.70x = 18,429,469,778.79 - Step 5: Solve for x
x = 18,429,469,778.79/117,251.70 - Step 6: Final answer
x = 157,178.70
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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.