Finding the Fourth Proportional to 135,768.71, 203,654.55 and 40,999.69
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Solution
The fourth proportional to 135,768.71, 203,654.55 and 40,999.69 is: 61,499.99
Step by Step Solution
- Step 1: Write the proportion equation
135,768.71 : 203,654.55 = 40,999.69 : x - Step 2: Convert to fraction form
135,768.71/203,654.55 = 40,999.69/x - Step 3: Cross multiply
135,768.71x = 203,654.55 × 40,999.69 - Step 4: Simplify right side
135,768.71x = 8,349,774,398.18 - Step 5: Solve for x
x = 8,349,774,398.18/135,768.71 - Step 6: Final answer
x = 61,499.99
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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.