Finding the Fourth Proportional to 135,885.55, 203,864.47 and 47,138.91
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Solution
The fourth proportional to 135,885.55, 203,864.47 and 47,138.91 is: 70,720.90
Step by Step Solution
- Step 1: Write the proportion equation
135,885.55 : 203,864.47 = 47,138.91 : x - Step 2: Convert to fraction form
135,885.55/203,864.47 = 47,138.91/x - Step 3: Cross multiply
135,885.55x = 203,864.47 × 47,138.91 - Step 4: Simplify right side
135,885.55x = 9,609,948,903.53 - Step 5: Solve for x
x = 9,609,948,903.53/135,885.55 - Step 6: Final answer
x = 70,720.90
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1.5x scale
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.