Finding the Fourth Proportional to 155,375.18, 214,436.77 and 87,395.02
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Solution
The fourth proportional to 155,375.18, 214,436.77 and 87,395.02 is: 120,615.82
Step by Step Solution
- Step 1: Write the proportion equation
155,375.18 : 214,436.77 = 87,395.02 : x - Step 2: Convert to fraction form
155,375.18/214,436.77 = 87,395.02/x - Step 3: Cross multiply
155,375.18x = 214,436.77 × 87,395.02 - Step 4: Simplify right side
155,375.18x = 18,740,705,048.31 - Step 5: Solve for x
x = 18,740,705,048.31/155,375.18 - Step 6: Final answer
x = 120,615.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.