Finding the Fourth Proportional to 155,454.12, 214,522.02 and 87,474.87
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Solution
The fourth proportional to 155,454.12, 214,522.02 and 87,474.87 is: 120,712.70
Step by Step Solution
- Step 1: Write the proportion equation
155,454.12 : 214,522.02 = 87,474.87 : x - Step 2: Convert to fraction form
155,454.12/214,522.02 = 87,474.87/x - Step 3: Cross multiply
155,454.12x = 214,522.02 × 87,474.87 - Step 4: Simplify right side
155,454.12x = 18,765,285,811.64 - Step 5: Solve for x
x = 18,765,285,811.64/155,454.12 - Step 6: Final answer
x = 120,712.70
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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.