Finding the Fourth Proportional to 134,489.12, 201,766.08 and 40,989.12
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Solution
The fourth proportional to 134,489.12, 201,766.08 and 40,989.12 is: 61,493.55
Step by Step Solution
- Step 1: Write the proportion equation
134,489.12 : 201,766.08 = 40,989.12 : x - Step 2: Convert to fraction form
134,489.12/201,766.08 = 40,989.12/x - Step 3: Cross multiply
134,489.12x = 201,766.08 × 40,989.12 - Step 4: Simplify right side
134,489.12x = 8,270,214,065.05 - Step 5: Solve for x
x = 8,270,214,065.05/134,489.12 - Step 6: Final answer
x = 61,493.55
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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.