Finding the Fourth Proportional to 118,213.80, 177,320.70 and 56,005.80
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Solution
The fourth proportional to 118,213.80, 177,320.70 and 56,005.80 is: 84,008.70
Step by Step Solution
- Step 1: Write the proportion equation
118,213.80 : 177,320.70 = 56,005.80 : x - Step 2: Convert to fraction form
118,213.80/177,320.70 = 56,005.80/x - Step 3: Cross multiply
118,213.80x = 177,320.70 × 56,005.80 - Step 4: Simplify right side
118,213.80x = 9,930,987,660.06 - Step 5: Solve for x
x = 9,930,987,660.06/118,213.80 - Step 6: Final answer
x = 84,008.70
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1.5x scale
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.