Finding the Fourth Proportional to 118,128.44, 177,257.46 and 47,988.92
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Solution
The fourth proportional to 118,128.44, 177,257.46 and 47,988.92 is: 72,009.70
Step by Step Solution
- Step 1: Write the proportion equation
118,128.44 : 177,257.46 = 47,988.92 : x - Step 2: Convert to fraction form
118,128.44/177,257.46 = 47,988.92/x - Step 3: Cross multiply
118,128.44x = 177,257.46 × 47,988.92 - Step 4: Simplify right side
118,128.44x = 8,506,394,067.34 - Step 5: Solve for x
x = 8,506,394,067.34/118,128.44 - Step 6: Final answer
x = 72,009.70
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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.