Finding the Fourth Proportional to 118,135.29, 177,002.46 and 71,289.75
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Solution
The fourth proportional to 118,135.29, 177,002.46 and 71,289.75 is: 106,813.65
Step by Step Solution
- Step 1: Write the proportion equation
118,135.29 : 177,002.46 = 71,289.75 : x - Step 2: Convert to fraction form
118,135.29/177,002.46 = 71,289.75/x - Step 3: Cross multiply
118,135.29x = 177,002.46 × 71,289.75 - Step 4: Simplify right side
118,135.29x = 12,618,461,122.79 - Step 5: Solve for x
x = 12,618,461,122.79/118,135.29 - Step 6: Final answer
x = 106,813.65
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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.