Finding the Fourth Proportional to 135,028.60, 202,380.90 and 56,102.20
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Solution
The fourth proportional to 135,028.60, 202,380.90 and 56,102.20 is: 84,085.99
Step by Step Solution
- Step 1: Write the proportion equation
135,028.60 : 202,380.90 = 56,102.20 : x - Step 2: Convert to fraction form
135,028.60/202,380.90 = 56,102.20/x - Step 3: Cross multiply
135,028.60x = 202,380.90 × 56,102.20 - Step 4: Simplify right side
135,028.60x = 11,354,013,727.98 - Step 5: Solve for x
x = 11,354,013,727.98/135,028.60 - Step 6: Final answer
x = 84,085.99
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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.