Finding the Fourth Proportional to 135,798.06, 203,693.96 and 79,992.18
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Solution
The fourth proportional to 135,798.06, 203,693.96 and 79,992.18 is: 119,986.43
Step by Step Solution
- Step 1: Write the proportion equation
135,798.06 : 203,693.96 = 79,992.18 : x - Step 2: Convert to fraction form
135,798.06/203,693.96 = 79,992.18/x - Step 3: Cross multiply
135,798.06x = 203,693.96 × 79,992.18 - Step 4: Simplify right side
135,798.06x = 16,293,923,913.23 - Step 5: Solve for x
x = 16,293,923,913.23/135,798.06 - Step 6: Final answer
x = 119,986.43
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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.