Finding the Fourth Proportional to 135,972.42, 203,937.54 and 69,461.70
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Solution
The fourth proportional to 135,972.42, 203,937.54 and 69,461.70 is: 104,181.78
Step by Step Solution
- Step 1: Write the proportion equation
135,972.42 : 203,937.54 = 69,461.70 : x - Step 2: Convert to fraction form
135,972.42/203,937.54 = 69,461.70/x - Step 3: Cross multiply
135,972.42x = 203,937.54 × 69,461.70 - Step 4: Simplify right side
135,972.42x = 14,165,848,222.22 - Step 5: Solve for x
x = 14,165,848,222.22/135,972.42 - Step 6: Final answer
x = 104,181.78
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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.