Finding the Fourth Proportional to 118,211.80, 177,317.70 and 56,003.80
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Solution
The fourth proportional to 118,211.80, 177,317.70 and 56,003.80 is: 84,005.70
Step by Step Solution
- Step 1: Write the proportion equation
118,211.80 : 177,317.70 = 56,003.80 : x - Step 2: Convert to fraction form
118,211.80/177,317.70 = 56,003.80/x - Step 3: Cross multiply
118,211.80x = 177,317.70 × 56,003.80 - Step 4: Simplify right side
118,211.80x = 9,930,465,007.26 - Step 5: Solve for x
x = 9,930,465,007.26/118,211.80 - Step 6: Final answer
x = 84,005.70
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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.